Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

You searched for +publisher:"Université Catholique de Louvain" +contributor:("Winckelmans, Gregoire"). One record found.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


Université Catholique de Louvain

1. Quan, Dieu Linh. A mesh-based technique for solving CFD problems with embedded geometries : anisotropic adaptive "nearly" body-fitted mesh approach.

Degree: 2014, Université Catholique de Louvain

Embedded geometry is a family of techniques dedicated to engineering problems involving remeshing on the fly during the simulation, or mesh generation in complex geometries. Embedded geometry has gained attention over the recent years due to its ability to shift a significant part of the burden of the geometrical description and/or discretization from the CAD tool to the simulation tool. The work presented in this thesis has led to a “purely” mesh-based technique to handle immersed geometries in Computational Fluid Dynamic problems. The proposed technique relies upon anisotropic mesh adaptivity in the vicinity of the embedded interface. The mesh adaptation is driven by the Hessian of the flow solution, and it contributes to improve the accuracy of the computation. An overview of existing methods for handling embedded geometry is given in the first part of the thesis. The state-of-the-art is discussed and existing trends for the treatment of immersed boundaries and immersed domains are reviewed and analysed in details, in order to pave the way for the proposed technique. In the context of the advocated ”nearly” body-fitted mesh approach, the use of very-large anisotropic elements in the vicinity of the interface results in an approximated interface, playing the role of an embedded boundary during simulation. Error analysis shows that an optimal rate of convergence can be recovered by a careful mesh size choice in the direction normal to the interface. The last part of the thesis deals with the application of the method to a number of Computational Fluid Dynamics problems, with the emphasis on immersed no-slip walls. The obtained results are shown to be in good agreement with reference studies by other authors, indicating that the proposed technique is an accurate, robust and convenient approach to solving CFD problems with embedded geometries.

(FSA - Sciences de l)  – UCL, 2014

Advisors/Committee Members: UCL - SST / IMMC / MEMA - Applied mathematics and mechanics, UCL - Ecole Polytechnique de Louvain, Remacle, Jean-Francois, Marchandise, Emilie, Winckelmans, Gregoire, Legat, Vincent, Chatelain, Philippe, Geuzaine, Christophe, Hachem, Elie.

Subjects/Keywords: Level-set; Anisotropic adaptivity; Mesh-based technique; Embedded geometries; Immersed interfaces

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Quan, D. L. (2014). A mesh-based technique for solving CFD problems with embedded geometries : anisotropic adaptive "nearly" body-fitted mesh approach. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/154134

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

Chicago Manual of Style (16th Edition):

Quan, Dieu Linh. “A mesh-based technique for solving CFD problems with embedded geometries : anisotropic adaptive "nearly" body-fitted mesh approach.” 2014. Thesis, Université Catholique de Louvain. Accessed October 22, 2019. http://hdl.handle.net/2078.1/154134.

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

MLA Handbook (7th Edition):

Quan, Dieu Linh. “A mesh-based technique for solving CFD problems with embedded geometries : anisotropic adaptive "nearly" body-fitted mesh approach.” 2014. Web. 22 Oct 2019.

Vancouver:

Quan DL. A mesh-based technique for solving CFD problems with embedded geometries : anisotropic adaptive "nearly" body-fitted mesh approach. [Internet] [Thesis]. Université Catholique de Louvain; 2014. [cited 2019 Oct 22]. Available from: http://hdl.handle.net/2078.1/154134.

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

Council of Science Editors:

Quan DL. A mesh-based technique for solving CFD problems with embedded geometries : anisotropic adaptive "nearly" body-fitted mesh approach. [Thesis]. Université Catholique de Louvain; 2014. Available from: http://hdl.handle.net/2078.1/154134

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

.