subject:(Conservative methods)

University of Texas – Austin

1. Zhang, Chenglong. On study of deterministic conservative solvers for the nonlinear boltzmann and landau transport equations.

Degree: PhD, Computational and applied mathematics, 2014, University of Texas – Austin

URL: http://hdl.handle.net/2152/26887

► The Boltzmann Transport Equation (BTE) has been the keystone of the kinetic theory, which is at the center of Statistical Mechanics bridging the gap between… (more)

▼ The Boltzmann Transport Equation (BTE) has been the keystone of the kinetic theory, which is at the center of Statistical Mechanics bridging the gap between the atomic structures and the continuum-like behaviors. The existence of solutions has been a great mathematical challenge and still remains elusive. As a grazing limit of the Boltzmann operator, the Fokker-Planck-Landau (FPL) operator is of primary importance for collisional plasmas. We have worked on the following three different projects regarding the most important kinetic models, the BTE and the FPL Equations. (1). A Discontinuous Galerkin Solver for Nonlinear BTE. We propose a deterministic numerical solver based on Discontinuous Galerkin (DG) methods, which has been rarely studied. As the key part, the weak form of the collision operator is approximated within subspaces of piecewise polynomials. To save the tremendous computational cost with increasing order of polynomials and number of mesh nodes, as well as to resolve loss of conservations due to domain truncations, the following combined procedures are applied. First, the collision operator is projected onto a subspace of basis polynomials up to first order. Then, at every time step, a conservation routine is employed to enforce the preservation of desired moments (mass, momentum and/or energy), with only linear complexity. The asymptotic error analysis shows the validity and guarantees the accuracy of these two procedures. We applied the property of ``shifting symmetries" in the weight matrix, which consists in finding a minimal set of basis matrices that can exactly reconstruct the complete family of collision weight matrix. This procedure, together with showing the sparsity of the weight matrix, reduces the computation and storage of the collision matrix from O(N3) down to O(N²). (2). Spectral Gap for Linearized Boltzmann Operator. Spectral gaps provide information on the relaxation to equilibrium. This is a pioneer field currently unexplored form the computational viewpoint. This work, for the first time, provides numerical evidence on the existence of spectral gaps and corresponding approximate values. The linearized Boltzmann operator is projected onto a Discontinuous Galerkin mesh, resulting in a ``collision matrix". The original spectral gap problem is then approximated by a constrained minimization problem, with objective function the Rayleigh quotient of the "collision matrix" and with constraints the conservation laws. A conservation correction then applies. We also study the convergence of the approximate Rayleigh quotient to the real spectral gap. (3). A Conservative Scheme for Approximating Collisional Plasmas. We have developed a deterministic conservative solver for the inhomogeneous Fokker-Planck-Landau equations coupled with Poisson equations. The original problem is splitted into two subproblems: collisonless Vlasov problem and collisonal homogeneous Fokker-Planck-Landau problem. They are handled with different numerical schemes. The former is approximated using Runge-Kutta… Advisors/Committee Members: Martínez Gamba, Irene, 1957- (advisor).

Subjects/Keywords: Boltzmann transport equation; Landau transport equation; Conservative methods; Discontinuous galerkin methods; Spectral methods

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APA (6^th Edition):

Zhang, C. (2014). On study of deterministic conservative solvers for the nonlinear boltzmann and landau transport equations. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/26887

Chicago Manual of Style (16^th Edition):

Zhang, Chenglong. “On study of deterministic conservative solvers for the nonlinear boltzmann and landau transport equations.” 2014. Doctoral Dissertation, University of Texas – Austin. Accessed January 24, 2021. http://hdl.handle.net/2152/26887.

MLA Handbook (7^th Edition):

Zhang, Chenglong. “On study of deterministic conservative solvers for the nonlinear boltzmann and landau transport equations.” 2014. Web. 24 Jan 2021.

Vancouver:

Zhang C. On study of deterministic conservative solvers for the nonlinear boltzmann and landau transport equations. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2014. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/2152/26887.

Council of Science Editors:

Zhang C. On study of deterministic conservative solvers for the nonlinear boltzmann and landau transport equations. [Doctoral Dissertation]. University of Texas – Austin; 2014. Available from: http://hdl.handle.net/2152/26887

2. Glanc, Pierre. Approximation numérique de l'équation de Vlasov par des méthodes de type remapping conservatif : Numerical approximation of Vlasov equation by conservative remapping type methods.

Degree: Docteur es, Mathématiques appliquées, 2014, Université de Strasbourg

URL: http://www.theses.fr/2014STRAD001

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Cette thèse présente l'étude et le développement de méthodes numériques pour la résolution d'équations de transport, en particulier d'une méthode de remapping bidimensionnel dont un… (more)

Subjects/Keywords: Équation de Vlasov; Méthodes conservatives; Méthodes semi-lagrangiennes; Intersections de maillages; Vlasov equation; Conservative methods; Semi-lagrangian methods; Intersection of meshes; 518

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Glanc, P. (2014). Approximation numérique de l'équation de Vlasov par des méthodes de type remapping conservatif : Numerical approximation of Vlasov equation by conservative remapping type methods. (Doctoral Dissertation). Université de Strasbourg. Retrieved from http://www.theses.fr/2014STRAD001

Chicago Manual of Style (16^th Edition):

Glanc, Pierre. “Approximation numérique de l'équation de Vlasov par des méthodes de type remapping conservatif : Numerical approximation of Vlasov equation by conservative remapping type methods.” 2014. Doctoral Dissertation, Université de Strasbourg. Accessed January 24, 2021. http://www.theses.fr/2014STRAD001.

MLA Handbook (7^th Edition):

Glanc, Pierre. “Approximation numérique de l'équation de Vlasov par des méthodes de type remapping conservatif : Numerical approximation of Vlasov equation by conservative remapping type methods.” 2014. Web. 24 Jan 2021.

Vancouver:

Glanc P. Approximation numérique de l'équation de Vlasov par des méthodes de type remapping conservatif : Numerical approximation of Vlasov equation by conservative remapping type methods. [Internet] [Doctoral dissertation]. Université de Strasbourg; 2014. [cited 2021 Jan 24]. Available from: http://www.theses.fr/2014STRAD001.

Council of Science Editors:

Glanc P. Approximation numérique de l'équation de Vlasov par des méthodes de type remapping conservatif : Numerical approximation of Vlasov equation by conservative remapping type methods. [Doctoral Dissertation]. Université de Strasbourg; 2014. Available from: http://www.theses.fr/2014STRAD001

3. Soler vasco, Juan Antonio. Méthodes numériques alignées pour problèmes elliptiques anisotropes en domaines bornés pour simulations du plasma de bord : Aligned numerical methods for anisotropic elliptic problems in bounded domains for plasma edge simulations.

Degree: Docteur es, Fusion magnétique, 2019, Ecole centrale de Marseille

URL: http://www.theses.fr/2019ECDM0005

► Les problèmes elliptiques hautement anisotropes se présentent dans de nombreux modèles physiques qui doivent être résolus numériquement. Une direction de diffusion dominante est alors introduite… (more)

▼ Les problèmes elliptiques hautement anisotropes se présentent dans de nombreux modèles physiques qui doivent être résolus numériquement. Une direction de diffusion dominante est alors introduite (appelée ici direction parallèle) le long de laquelle le coefficient de diffusion est plusieurs ordres de grandeur plus grand que dans la direction perpendiculaire. Dans ce cas, les méthodes aux différences finies standard ne sont pas conçues pour fournir une discrétisation optimale et peuvent conduire à une diffusion perpendiculaire artificielle potentiellement importante, résultant d’erreurs de discrétisation dans l’approximation de la diffusion parallèle.Cette thèse se concentre sur trois axes principaux pour résoudre les équations elliptiques anisotropes de manière appropriée : un schéma aligné et conservatif de différences finies pour discrétiser l’opérateur Laplacien, une reformulation de l’équation de Helmholtz pour réduire la diffusion numérique, et un solveur basé sur les méthodes multi-grille comme préconditionneur d’un solveur GMRES. Les deux premiers chapitres sont consacrés à la présentation du cadre de cette thèse.Au chapitre 1, une brève introduction à la fusion par confinement magnétique est présentée, identifiant les problèmes numériques soulevés par la résolution des équations fluides, en particulier dans la région proche au bord (Scrape-Off-Layer). Le problème numérique que nous allons traiter est essentiellement un problème elliptique anisotrope où la diffusion est de 5 à 8 ordres de grandeur plus grande dans la direction parallèle que dans la direction perpendiculaire.Dans le chapitre 2, une introduction bibliographique aux méthodes numériques résolvant les équations elliptiques anisotropes est présentée, avec un accent sur les méthodes aux différences finies.Dans le chapitre 3, un schéma de discrétisation aligné est proposé en utilisant des grilles cartésiennes non alignées. Selon la méthode Support Operator Method (SOM), la propriété que l’opérateur de diffusion parallèle est auto-adjoint est maintenue au niveau discret. Par rapport aux méthodes existantes, la formulation actuelle garantit la conservation des flux dans les directions parallèles et perpendiculaires. De plus, dans les domaines bornés, une discrétisation des conditions aux limites est présentée afin d’assurer une précision comparable de la solution. Des tests numériques basés sur des solutions manufacturées montrent que la méthode est capable de fournir des approximations numériques précises et stables dans des domaines périodiques ou bornés avec un nombre considérablement réduit de degrés de liberté par rapport aux autres approches non alignées.Une reformulation de l’équation de Helmholtz est présentée au chapitre 4 pour limiter la diffusion numérique liée à la discrétisation du Laplacien pour les valeurs élevées de diffusion parallèle. La méthode est basée sur la séparation de la solution en une partie alignée et non alignée, par rapport à l’opérateur de diffusion parallèle, grâce à des méthodes de filtrage. Les cas de tests montrent que… Advisors/Committee Members: Serre, Eric (thesis director), Schwander, Frédéric (thesis director), Liandrat, Jacques (thesis director).

Subjects/Keywords: Opérateur très anisotrope; Différences finies conservatives; Approche alignée; Méthode du filtrage; Solveur Multi-grille; Anisotropic operators; Conservative finite-difference scheme; Aligned approach; Filtering methods; Multigrid solver

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Soler vasco, J. A. (2019). Méthodes numériques alignées pour problèmes elliptiques anisotropes en domaines bornés pour simulations du plasma de bord : Aligned numerical methods for anisotropic elliptic problems in bounded domains for plasma edge simulations. (Doctoral Dissertation). Ecole centrale de Marseille. Retrieved from http://www.theses.fr/2019ECDM0005

Chicago Manual of Style (16^th Edition):

Soler vasco, Juan Antonio. “Méthodes numériques alignées pour problèmes elliptiques anisotropes en domaines bornés pour simulations du plasma de bord : Aligned numerical methods for anisotropic elliptic problems in bounded domains for plasma edge simulations.” 2019. Doctoral Dissertation, Ecole centrale de Marseille. Accessed January 24, 2021. http://www.theses.fr/2019ECDM0005.

MLA Handbook (7^th Edition):

Soler vasco, Juan Antonio. “Méthodes numériques alignées pour problèmes elliptiques anisotropes en domaines bornés pour simulations du plasma de bord : Aligned numerical methods for anisotropic elliptic problems in bounded domains for plasma edge simulations.” 2019. Web. 24 Jan 2021.

Vancouver:

Soler vasco JA. Méthodes numériques alignées pour problèmes elliptiques anisotropes en domaines bornés pour simulations du plasma de bord : Aligned numerical methods for anisotropic elliptic problems in bounded domains for plasma edge simulations. [Internet] [Doctoral dissertation]. Ecole centrale de Marseille; 2019. [cited 2021 Jan 24]. Available from: http://www.theses.fr/2019ECDM0005.

Council of Science Editors:

Soler vasco JA. Méthodes numériques alignées pour problèmes elliptiques anisotropes en domaines bornés pour simulations du plasma de bord : Aligned numerical methods for anisotropic elliptic problems in bounded domains for plasma edge simulations. [Doctoral Dissertation]. Ecole centrale de Marseille; 2019. Available from: http://www.theses.fr/2019ECDM0005

University of Houston

4. Pernia, Denet 1988-. Application and Assessment of Open-system vs. Closed-system Kerogen Isolation Methods for Characterization of Gas Shale Kerogens.

Degree: MS, Geology, 2012, University of Houston

URL: http://hdl.handle.net/10657/710

► Increasing interest in unconventional natural gas resources has spurred much research into the origin as well as the mode of entrapment and expulsion of natural… (more)

▼ Increasing interest in unconventional natural gas resources has spurred much research into the origin as well as the mode of entrapment and expulsion of natural gas. A pre-requisite of all such research is the isolation and separation of the kerogen, the insoluble organic matter from which hydrocarbons are formed, in its purest and most intact form from the rock matrix. Previous work showed that the isolation methods, closed-method versus open-method, used can impact kerogen recovery, purity, and elemental composition of the kerogen. This study takes it further and also addresses the effects of the isolation processes on the elemental, isotropic, spectroscopic, and structural (physical) properties of the kerogen recovered. Four major gas shales, including the Barnett, the Marcellus, the Haynesville, and a Polish gas shale, were chosen to test the impact of the closed-conservative versus open-conventional isolation methods on the properties of kerogen. The Monterey shale, though not strictly a gas shale, was included to address the effects on sulfur-rich, Type II-S kerogens. Standard screening procedures including Total Organic Carbon analysis, RockEval Pyrolysis, and X-ray Diffraction (XRD)-mineralogy were carried out on the native rocks, as well as sulfur forms. The carbon and sulfur isotopic compositions, organic elemental composition, solid-state 13C Nuclear Magnetic Resonance (NMR) spectroscopic properties, and Pyrolysis-GC pyrolytic behavior of the isolated kerogens were investigated. Higher ash content of kerogens isolated via the open-method and corresponding XRD results show more impurities than the closed-method kerogens. The closed-method resulted in higher kerogen recovery efficiencies. Pyrolysis-GC n-alkene/n-alkane ratios and relative quantities of alkanes, alkenes, and aromatics show much variability across samples isolated by the three methods, as though the same sample’s kerogen-cracking behavior has been altered. The 13C NMR yielded no significant change in the kerogen structure. The closed-method kerogens generally had higher carbon weight % than the open-method. Stable carbon isotopes showed no significant differences in the kerogen δ13C, whereas the stable sulfur isotopes showed significant change in the kerogen δ36S. Still to be investigated are the impacts of the isolation methods on the kerogen’s gas-retention and storage capacity as well as its density. Advisors/Committee Members: Bissada, K. K. (advisor), Capuano, Regina M. (committee member), Stewart, Robert R. (committee member), Curiale, Joseph A. (committee member).

Subjects/Keywords: Kerogen; Kerogen isolation methods; Closed-conservative isolation system; Open-conventional isolation system; Sulfur forms; Kerogen sulfur isotopes; Pyrolysis-GC; Nuclear magnetic resonance; Geology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pernia, D. 1. (2012). Application and Assessment of Open-system vs. Closed-system Kerogen Isolation Methods for Characterization of Gas Shale Kerogens. (Masters Thesis). University of Houston. Retrieved from http://hdl.handle.net/10657/710

Chicago Manual of Style (16^th Edition):

Pernia, Denet 1988-. “Application and Assessment of Open-system vs. Closed-system Kerogen Isolation Methods for Characterization of Gas Shale Kerogens.” 2012. Masters Thesis, University of Houston. Accessed January 24, 2021. http://hdl.handle.net/10657/710.

MLA Handbook (7^th Edition):

Pernia, Denet 1988-. “Application and Assessment of Open-system vs. Closed-system Kerogen Isolation Methods for Characterization of Gas Shale Kerogens.” 2012. Web. 24 Jan 2021.

Vancouver:

Pernia D1. Application and Assessment of Open-system vs. Closed-system Kerogen Isolation Methods for Characterization of Gas Shale Kerogens. [Internet] [Masters thesis]. University of Houston; 2012. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/10657/710.

Council of Science Editors:

Pernia D1. Application and Assessment of Open-system vs. Closed-system Kerogen Isolation Methods for Characterization of Gas Shale Kerogens. [Masters Thesis]. University of Houston; 2012. Available from: http://hdl.handle.net/10657/710

Brno University of Technology

5. Kukačková, Hana. Analýza variability intronů: Analysis of intron sequence variability.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/26161

► This bachelor thesis reviews genetic expression, the main characteristics of introns, their importance, and the methodology of their recognition. Practical part focuses on intron variability… (more)

Subjects/Keywords: Nukleová kyselina; DNA; RNA; genová exprese; intron; metody rozpoznávání intronů; konzervativní úseky intronů; Nucleic acid; DNA; RNA; gene expression; intron; intron recognition methods; intron conservative sequences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kukačková, H. (2018). Analýza variability intronů: Analysis of intron sequence variability. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/26161

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kukačková, Hana. “Analýza variability intronů: Analysis of intron sequence variability.” 2018. Thesis, Brno University of Technology. Accessed January 24, 2021. http://hdl.handle.net/11012/26161.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kukačková, Hana. “Analýza variability intronů: Analysis of intron sequence variability.” 2018. Web. 24 Jan 2021.

Vancouver:

Kukačková H. Analýza variability intronů: Analysis of intron sequence variability. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/11012/26161.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kukačková H. Analýza variability intronů: Analysis of intron sequence variability. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/26161

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Texas – Austin

6. James, Jason Desmond. Reliable computation of invariant dynamics for conservative discrete dynamical systems.

Degree: PhD, Mathematics, 2009, University of Texas – Austin

URL: http://hdl.handle.net/2152/ETD-UT-2009-12-446

► Computing reliable numerical approximations of invariant sets for nonlinear systems is the core problem for computer assisted study of dynamical systems. In the case of… (more)

Subjects/Keywords: Conservative Dynamics; Automatic Chaos Verification; Stable/Unstable Manifolds; Numerical Methods; Computational Topology

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APA (6^th Edition):

James, J. D. (2009). Reliable computation of invariant dynamics for conservative discrete dynamical systems. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/ETD-UT-2009-12-446

Chicago Manual of Style (16^th Edition):

James, Jason Desmond. “Reliable computation of invariant dynamics for conservative discrete dynamical systems.” 2009. Doctoral Dissertation, University of Texas – Austin. Accessed January 24, 2021. http://hdl.handle.net/2152/ETD-UT-2009-12-446.

MLA Handbook (7^th Edition):

James, Jason Desmond. “Reliable computation of invariant dynamics for conservative discrete dynamical systems.” 2009. Web. 24 Jan 2021.

Vancouver:

James JD. Reliable computation of invariant dynamics for conservative discrete dynamical systems. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2009. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/2152/ETD-UT-2009-12-446.

Council of Science Editors:

James JD. Reliable computation of invariant dynamics for conservative discrete dynamical systems. [Doctoral Dissertation]. University of Texas – Austin; 2009. Available from: http://hdl.handle.net/2152/ETD-UT-2009-12-446

7. Nós, Rudimar Luiz. \"Simulações de escoamentos tridimensionais bifásicos empregando métodos adaptativos e modelos de campo fase\".

Degree: PhD, Matemática Aplicada, 2007, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/45/45132/tde-08052007-143200/ ;

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Este é o primeiro trabalho que apresenta simulações tridimensionais completamente adaptativas de um modelo de campo de fase para um fluido incompressível com densidade de… (more)

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Este é o primeiro trabalho que apresenta simulações tridimensionais completamente adaptativas de um modelo de campo de fase para um fluido incompressível com densidade de massa constante e viscosidade variável, conhecido como Modelo H. Solucionando numericamente as equações desse modelo em malhas refinadas localmente com a técnica AMR, simulamos computacionalmente escoamentos bifásicos tridimensionais. Os modelos de campo de fase oferecem uma aproximação física sistemática para investigar fenômenos que envolvem sistemas multifásicos complexos, tais como fluidos com camadas de mistura, a separação de fases sob forças de cisalhamento e a evolução de micro-estruturas durante processos de solidificação. Como as interfaces são substituídas por delgadas regiões de transição (interfaces difusivas), as simulações de campo de fase requerem muita resolução nessas regiões para capturar corretamente a física do problema em estudo. Porém essa não é uma tarefa fácil de ser executada numericamente. As equações que caracterizam o modelo de campo de fase contêm derivadas de ordem elevada e intrincados termos não lineares, o que exige uma estratégia numérica eficiente capaz de fornecer precisão tanto no tempo quanto no espaço, especialmente em três dimensões. Para obter a resolução exigida no tempo, usamos uma discretização semi-implícita de segunda ordem para solucionar as equações acopladas de Cahn-Hilliard e Navier-Stokes (Modelo H). Para resolver adequadamente as escalas físicas relevantes no espaço, utilizamos malhas refinadas localmente que se adaptam dinamicamente para recobrir as regiões de interesse do escoamento, como por exemplo, as vizinhanças das interfaces do fluido. Demonstramos a eficiência e a robustez de nossa metodologia com simulações que incluem a separação dos componentes de uma mistura bifásica, a deformação de gotas sob cisalhamento e as instabilidades de Kelvin-Helmholtz.

This is the first work that introduces 3D fully adaptive simulations for a phase field model of an incompressible fluid with matched densities and variable viscosity, known as Model H. Solving numerically the equations of this model in meshes locally refined with AMR technique, we simulate computationally tridimensional two-phase flows. Phase field models offer a systematic physical approach to investigate complex multiphase systems phenomena such as fluid mixing layers, phase separation under shear and microstructure evolution during solidification processes. As interfaces are replaced by thin transition regions (diffuse interfaces), phase field simulations need great resolution in these regions to capture correctly the physics of the studied problem. However, this is not an easy task to do numerically. Phase field model equations have high…

Advisors/Committee Members: Ceniceros, Héctor Daniel, Roma, Alexandre Megiorin.

Subjects/Keywords: adaptive mesh refinement; adaptive method; biharmonic equation; conservative phase field models; equação biharmônica; método adaptativo; métodos semi-implícitos; modelos de campo de fase conservativos; multilevel multigrid; multinível-multigrid; refinamento de malhas adaptativas; semi-implicit methods; separação dos componentes de uma mistura bifásica; spinodal decomposition

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nós, R. L. (2007). \"Simulações de escoamentos tridimensionais bifásicos empregando métodos adaptativos e modelos de campo fase\". (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/45/45132/tde-08052007-143200/ ;

Chicago Manual of Style (16^th Edition):

Nós, Rudimar Luiz. “\"Simulações de escoamentos tridimensionais bifásicos empregando métodos adaptativos e modelos de campo fase\".” 2007. Doctoral Dissertation, University of São Paulo. Accessed January 24, 2021. http://www.teses.usp.br/teses/disponiveis/45/45132/tde-08052007-143200/ ;.

MLA Handbook (7^th Edition):

Nós, Rudimar Luiz. “\"Simulações de escoamentos tridimensionais bifásicos empregando métodos adaptativos e modelos de campo fase\".” 2007. Web. 24 Jan 2021.

Vancouver:

Nós RL. \"Simulações de escoamentos tridimensionais bifásicos empregando métodos adaptativos e modelos de campo fase\". [Internet] [Doctoral dissertation]. University of São Paulo; 2007. [cited 2021 Jan 24]. Available from: http://www.teses.usp.br/teses/disponiveis/45/45132/tde-08052007-143200/ ;.

Council of Science Editors:

Nós RL. \"Simulações de escoamentos tridimensionais bifásicos empregando métodos adaptativos e modelos de campo fase\". [Doctoral Dissertation]. University of São Paulo; 2007. Available from: http://www.teses.usp.br/teses/disponiveis/45/45132/tde-08052007-143200/ ;

University of South Africa

8. Conradie, A. F. Bybel as problematiese teks: ’n kritiese ontleding aan die hand van polemieke in die Nederduitse Gereformeerde Kerk: van Johannes du Plessis tot Ferdinand Deist en Willem Vorster (1920–2000) .

Degree: 2019, University of South Africa

URL: http://uir.unisa.ac.za/handle/10500/25638

► Die woordestryd oor goddelike inspirasie van alles wat in die Bybel staan, as gevolg van die uitgesproke stellings van Johannes Du Plessis, het tot ‘n… (more)

▼ Die woordestryd oor goddelike inspirasie van alles wat in die Bybel staan, as gevolg van die uitgesproke stellings van Johannes Du Plessis, het tot ‘n krisis gelei wat as baken in die annale van die Ned. Geref. Kerk beskou word. Die meeste van sy standpunte word vandag as waarheid aanvaar en hy het bygedra tot die intellektuele debat oor die Bybel as Woord van God wat vandag nog aangaan. Du Plessis se herkoms, opleiding en verdienste as predikant en saakgelastigde van die Kerk word kortliks bespreek. Hy was die talentvolle seun en enigste kind van 'n Afrikaanse predikant en 'n Engelse vrou, die dogter van 'n sendeling van die LMS. Hy word professor aan die Kweekskool en met kennis opgedoen tydens verdere studie oorsee, het hy gewys op dele van die Bybel wat nie aan goddelike inspirasie toegeskryf kan word nie. Hy het dit ook duidelik gestel dat hy as teoloog en leermeester nie kon glo sonder om te probeer verstaan nie. Hy het sy bevindinge bekend gemaak in Het Zoeklicht, 'n maandblad wat bedoel was om as soeklig te dien om verskillende vorms van “duisternis” in beide godsdiens en die politiek, betref, aan die lig te bring. Oortuig van die waarde van die Hoër Kritiek, het hy dit as sy plig geag om wat hy deur wye leeswerk en kritiese ondersoek rakende die oorsprong, vorm en inhoud van die Ou Testamentiese boeke bekom het, bekend te maak. Artikels van dié aard, eers in De Kerkbode en daarna in Het Zoeklicht, het gelei tot beroering onder behoudende lesers wat gekant was teen enige veranderinge in die prediking. Hulle was veral ontstoke oor sy siening dat die belydenisskrifte wat spruit uit die dae van die Hervorming 500 jaar tevore, oop was vir herformulering. Klagtes dat Du Plessis op 'n gevaarlike pad was, was die begin van wat gelei het tot 'n krisis in die Kerk, en uiteindelik tot 'n buitengewone sinode in 1930 toe hy van sy pos onthef is. Die behoudende reaksie van die meerderheid was dat die Bybel die onfeilbare Woord van God is. Die gevolg was dat 'n groot aantal van die leiers van die Kerk, aanhangers van die Nasionale Party wat in 1948 aan bewind gekom het, tekste uit die Bybel gebruik het om die beleid van Apartheid Skriftuurlik te begrond. Ná byna veertig jaar van 'n onkritiese benadering tot die Bybel, is die geloof in 'n foutlose Bybel weer bevraagteken. Tussen die eerlike teoloë wat dit gewaag het om te wys op foute en inkonsekwenthede, was Ferdinand Deist en Willem Vorster. Albei het hulle opleiding as predikante voltooi maar het hulle nie beroepbaar gestel nie omdat hulle met verdere studie voortgegaan het en hulle openlik uitgespreek het teen die misbruik van Bybelse gegewens om apartheid te regverdig. Geskool aan die Kweekskool in Stellenbosch, het Deist hom onderskei as geleerde wat sy drang na dieper ondersoek gepaar het met 'n piëtisme waarop hy uiting gegee het in 'n stortvloed van akademiese en populêre geskrifte ― wat nie altyd gestrook het met sy stelling dat die Woord van God nie met 'n gelyk-aan-teken aan mekaar verbind kan word nie. Vorster, wat sy opleiding aan die Universiteit… Advisors/Committee Members: Spangenberg, I. J. J. (Izak J. J.) (advisor), Oliver, E (advisor).

Subjects/Keywords: Bybelse gesag; Fundamentalisties; Du Plessis; Deist; Vorster; Malan; Murray; Hofmeyr; Histories-kritiese metodes; Behoudend; Heilige Skrif; Hoër Kritiek; Inspirasie; Ingewing; Krities; Onkrities; Openbaring; Skepping; Sonde; Sondeval; Biblical authority; Fundamentalist; Historico-critical methods; Conservative; Holy Bible; Higher criticism; Inspiration; Critical; Uncritical; Revelation; Creation; Sin; The Fall

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Conradie, A. F. (2019). Bybel as problematiese teks: ’n kritiese ontleding aan die hand van polemieke in die Nederduitse Gereformeerde Kerk: van Johannes du Plessis tot Ferdinand Deist en Willem Vorster (1920–2000) . (Doctoral Dissertation). University of South Africa. Retrieved from http://uir.unisa.ac.za/handle/10500/25638

Chicago Manual of Style (16^th Edition):

Conradie, A F. “Bybel as problematiese teks: ’n kritiese ontleding aan die hand van polemieke in die Nederduitse Gereformeerde Kerk: van Johannes du Plessis tot Ferdinand Deist en Willem Vorster (1920–2000) .” 2019. Doctoral Dissertation, University of South Africa. Accessed January 24, 2021. http://uir.unisa.ac.za/handle/10500/25638.

MLA Handbook (7^th Edition):

Conradie, A F. “Bybel as problematiese teks: ’n kritiese ontleding aan die hand van polemieke in die Nederduitse Gereformeerde Kerk: van Johannes du Plessis tot Ferdinand Deist en Willem Vorster (1920–2000) .” 2019. Web. 24 Jan 2021.

Vancouver:

Conradie AF. Bybel as problematiese teks: ’n kritiese ontleding aan die hand van polemieke in die Nederduitse Gereformeerde Kerk: van Johannes du Plessis tot Ferdinand Deist en Willem Vorster (1920–2000) . [Internet] [Doctoral dissertation]. University of South Africa; 2019. [cited 2021 Jan 24]. Available from: http://uir.unisa.ac.za/handle/10500/25638.

Council of Science Editors:

Conradie AF. Bybel as problematiese teks: ’n kritiese ontleding aan die hand van polemieke in die Nederduitse Gereformeerde Kerk: van Johannes du Plessis tot Ferdinand Deist en Willem Vorster (1920–2000) . [Doctoral Dissertation]. University of South Africa; 2019. Available from: http://uir.unisa.ac.za/handle/10500/25638

9. Chiapolino, Alexandre. Quelques contributions à la modélisation et simulation numérique des écoulements diphasiques compressibles : Some contributions to the theoretical modeling and numerical simulation of compressible two-phase flows.

Degree: Docteur es, Mécanique énergétique, 2018, Aix Marseille Université

URL: http://www.theses.fr/2018AIXM0757

►

Ce manuscrit porte sur la modélisation et la simulation numérique d’écoulements diphasiques compressibles. Dans ce contexte, les méthodes d’interfaces diﬀuses sont aujourd’hui bien acceptées. Cependant,… (more)

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Ce manuscrit porte sur la modélisation et la simulation numérique d’écoulements diphasiques compressibles. Dans ce contexte, les méthodes d’interfaces diﬀuses sont aujourd’hui bien acceptées. Cependant, un progrès est encore attendu en ce qui concerne la précision de la capture numérique de ces interfaces. Une nouvelle méthode est développée et permet de réduire signiﬁcativement cette zone de capture. Cette méthode se place dans le contexte des méthodes numériques de type “MUSCL”, très employées dans les codes de production, et sur maillages non-structurés. Ces interfaces pouvant être le lieu où une transition de phase s’opère, celle-ci est considérée au travers d’un processus de relaxation des énergies libres de Gibbs. Un nouveau solveur de relaxation à thermodynamique rapide est développé et s’avère précis, rapide et robuste y compris lors du passage vers les limites monophasiques. En outre, par rapport aux applications industrielles envisagées, une extension de la thermodynamique des phases et du mélange est nécessaire. Une nouvelle équation d’état est développée en conséquence. La formulation est convexe et est basée sur l’équation d’état “Noble-Abel-Stiﬀened-Gas”. Enﬁn, sur un autre plan la dispersion de ﬂuides non-miscibles sous l’eﬀet de la gravité est également abordée. Cette problématique fait apparaître de larges échelles de temps et d’espace et motive le développement d’un nouveau modèle multi-ﬂuide de type “shallow water bi-couche”. Sa résolution numérique est également traitée

This manuscript addresses the theoretical modeling and numerical simulation of compressible two-phase ﬂows. In this context, diﬀuse interface methods are now well-accepted but progress is still needed at the level of numerical accuracy regarding their capture. A new method is developed in this research work, that allows signiﬁcant sharpening. This method can be placed in the framework of MUSCL-type schemes, widely used in production codes and on unstructured grids. Phase transition is addressed as well through a relaxation process relying on Gibbs free energies. A new instantaneous relaxation solver is developed and happens to be accurate, fast and robust. Moreover, in view of the intended industrial applications, an extension of the thermodynamics of the phases and of the mixture is necessary. A new equation of state is consequently developed. The formulation is convex and based on the “Noble-Abel-Stiﬀened-Gas” equation of state. In another context, the dispersion of non-miscible ﬂuids under gravity eﬀects is considered as well. This problematic involves large time and space scales and has motivated the development of a new multi-ﬂuid model for “two-layer shallow water” ﬂows. Its numerical resolution is treated as well

Advisors/Committee Members: Saurel, Richard (thesis director).

Subjects/Keywords: Ecoulements diphasiques; Changement de phase; Équations d'état; Interfaces; Systèmes hyperboliques; Relaxation; Méthodes numériques; Solveurs de Riemann; Termes non-Conservatifs; Shallow water bi-Couche; Two-Phase ﬂows; Phase transition; Equations of state; Interfaces; Hyperbolic systems; Relaxation; Numerical methods; Riemann solvers; Non-Conservative terms; Two-Layer shallow water ﬂows

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chiapolino, A. (2018). Quelques contributions à la modélisation et simulation numérique des écoulements diphasiques compressibles : Some contributions to the theoretical modeling and numerical simulation of compressible two-phase flows. (Doctoral Dissertation). Aix Marseille Université. Retrieved from http://www.theses.fr/2018AIXM0757

Chicago Manual of Style (16^th Edition):

Chiapolino, Alexandre. “Quelques contributions à la modélisation et simulation numérique des écoulements diphasiques compressibles : Some contributions to the theoretical modeling and numerical simulation of compressible two-phase flows.” 2018. Doctoral Dissertation, Aix Marseille Université. Accessed January 24, 2021. http://www.theses.fr/2018AIXM0757.

MLA Handbook (7^th Edition):

Chiapolino, Alexandre. “Quelques contributions à la modélisation et simulation numérique des écoulements diphasiques compressibles : Some contributions to the theoretical modeling and numerical simulation of compressible two-phase flows.” 2018. Web. 24 Jan 2021.

Vancouver:

Chiapolino A. Quelques contributions à la modélisation et simulation numérique des écoulements diphasiques compressibles : Some contributions to the theoretical modeling and numerical simulation of compressible two-phase flows. [Internet] [Doctoral dissertation]. Aix Marseille Université 2018. [cited 2021 Jan 24]. Available from: http://www.theses.fr/2018AIXM0757.

Council of Science Editors:

Chiapolino A. Quelques contributions à la modélisation et simulation numérique des écoulements diphasiques compressibles : Some contributions to the theoretical modeling and numerical simulation of compressible two-phase flows. [Doctoral Dissertation]. Aix Marseille Université 2018. Available from: http://www.theses.fr/2018AIXM0757

10. ΔΡΟΣΟΣ, ΛΑΜΠΡΟΣ. ΑΝΑΛΥΤΙΚΕΣ ΚΑΙ ΑΡΙΘΜΗΤΙΚΕΣ ΜΕΘΟΔΟΙ ΧΑΟΤΙΚΗΣ ΔΥΝΑΜΙΚΗΣ.

Degree: 1993, Πανεπιστήμιο Πατρών; University of Patras

URL: http://hdl.handle.net/10442/hedi/2964

► THE MAIN GOAL OF THIS THESIS IS TO DEVELOP AND USE ANALYTICAL AS WELL AS NUMERICAL METHODS STUDYING THE SOLUTIONS OF SYSTEMS OF NON LINEAR… (more)

Subjects/Keywords: ACCUMULATION OF SINGULARITIES; Algebraic singularities; Bifurcations; Chaos; CONSERVATIVE SYSTEMS; FOURIER SERIES; INFINITE SHEETED SOLUTIONS (ISS); Integrability; PERIOD DOUBLING; Periodic orbits; REPEATITIVECALCULATION METHODS; REVERSIBLE SYSTEMS; RIEMANN SURFACES; SINGULARITY ANALYSIS; SURFACES OF SECTION; Αλγεβρικές ιδιομορφίες; ΑΝΑΛΥΣΗ ΙΔΙΟΜΟΡΦΙΩΝ; ΑΝΤΙΣΤΡΕΨΙΜΑ ΣΥΣΤΗΜΑΤΑ; ΑΠΕΙΡΩΣ ΠΛΕΙΟΤΙΜΕΣ ΛΥΣΕΙΣ (ΑΠΛ); Διακλαδώσεις; ΔΙΑΤΗΡΗΤΙΚΑ ΣΥΣΤΗΜΑΤΑ; ΕΠΑΝΑΛΗΠΤΙΚΕΣ ΜΕΘΟΔΟΙ ΥΠΟΛΟΓΙΣΜΟΥ; ΕΠΙΦΑΝΕΙΕΣ RIEMANN; ΕΠΙΦΑΝΕΙΕΣ ΤΟΜΩΝ; Ολοκληρωσιμότητα; Περιοδικές τροχιές; ΣΕΙΡΕΣ FOURIER; ΣΥΣΣΩΡΕΥΣΗ ΙΔΙΟΜΟΡΦΙΩΝ; Χάος

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

ΔΡΟΣΟΣ, �. (1993). ΑΝΑΛΥΤΙΚΕΣ ΚΑΙ ΑΡΙΘΜΗΤΙΚΕΣ ΜΕΘΟΔΟΙ ΧΑΟΤΙΚΗΣ ΔΥΝΑΜΙΚΗΣ. (Thesis). Πανεπιστήμιο Πατρών; University of Patras. Retrieved from http://hdl.handle.net/10442/hedi/2964

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

ΔΡΟΣΟΣ, ΛΑΜΠΡΟΣ. “ΑΝΑΛΥΤΙΚΕΣ ΚΑΙ ΑΡΙΘΜΗΤΙΚΕΣ ΜΕΘΟΔΟΙ ΧΑΟΤΙΚΗΣ ΔΥΝΑΜΙΚΗΣ.” 1993. Thesis, Πανεπιστήμιο Πατρών; University of Patras. Accessed January 24, 2021. http://hdl.handle.net/10442/hedi/2964.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

ΔΡΟΣΟΣ, ΛΑΜΠΡΟΣ. “ΑΝΑΛΥΤΙΚΕΣ ΚΑΙ ΑΡΙΘΜΗΤΙΚΕΣ ΜΕΘΟΔΟΙ ΧΑΟΤΙΚΗΣ ΔΥΝΑΜΙΚΗΣ.” 1993. Web. 24 Jan 2021.

Vancouver:

ΔΡΟΣΟΣ �. ΑΝΑΛΥΤΙΚΕΣ ΚΑΙ ΑΡΙΘΜΗΤΙΚΕΣ ΜΕΘΟΔΟΙ ΧΑΟΤΙΚΗΣ ΔΥΝΑΜΙΚΗΣ. [Internet] [Thesis]. Πανεπιστήμιο Πατρών; University of Patras; 1993. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/10442/hedi/2964.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

ΔΡΟΣΟΣ �. ΑΝΑΛΥΤΙΚΕΣ ΚΑΙ ΑΡΙΘΜΗΤΙΚΕΣ ΜΕΘΟΔΟΙ ΧΑΟΤΙΚΗΣ ΔΥΝΑΜΙΚΗΣ. [Thesis]. Πανεπιστήμιο Πατρών; University of Patras; 1993. Available from: http://hdl.handle.net/10442/hedi/2964

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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Open Access Theses and Dissertations