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You searched for subject:(Curvilinear velocity). Showing records 1 – 2 of 2 total matches.

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Brno University of Technology

1. Sloupenský, Zdeněk. Návrh odstředivého čerpadla metodami diferenciální geometrie: Design of Centrifugal Pump Using Differential Geometry Methods.

Degree: 2019, Brno University of Technology

This thesis deals with a new approach to the design of impeller, blade and spiral of centrifugal pump. The mathematic model of flow inside meridional section of impeller and spiral is based on the instruments of differential geometry applied to Bezier surfaces. This formerly introduced theory is more deeply developed in this thesis and the conclusions are applied to the design of centrifugal pump parts working with fluid. The main thesis output is the mathematic model and on its principles created software determined for the design of impeller, blade and spiral. The received results are exportable into one of the commonly used 3D modeling programs. Advisors/Committee Members: Pochylý, František (advisor), Varchola, Michal (referee), Melichar, Jan (referee), Drábková, Sylva (referee).

Subjects/Keywords: Bézierova plocha; diferenciální geometrie; křivočarý souřadný systém; odstředivé čerpadlo; meridiální řez; meridiální rychlost; oběžné kolo; lopatka; spirála; Bezier surface; differential geometry; curvilinear coordinate system; centrifugal pump; meridional section; meridional velocity; impeller; blade; spiral

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

APA (6th Edition):

Sloupenský, Z. (2019). Návrh odstředivého čerpadla metodami diferenciální geometrie: Design of Centrifugal Pump Using Differential Geometry Methods. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/6715

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):

Sloupenský, Zdeněk. “Návrh odstředivého čerpadla metodami diferenciální geometrie: Design of Centrifugal Pump Using Differential Geometry Methods.” 2019. Thesis, Brno University of Technology. Accessed December 03, 2020. http://hdl.handle.net/11012/6715.

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

MLA Handbook (7th Edition):

Sloupenský, Zdeněk. “Návrh odstředivého čerpadla metodami diferenciální geometrie: Design of Centrifugal Pump Using Differential Geometry Methods.” 2019. Web. 03 Dec 2020.

Vancouver:

Sloupenský Z. Návrh odstředivého čerpadla metodami diferenciální geometrie: Design of Centrifugal Pump Using Differential Geometry Methods. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2020 Dec 03]. Available from: http://hdl.handle.net/11012/6715.

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

Council of Science Editors:

Sloupenský Z. Návrh odstředivého čerpadla metodami diferenciální geometrie: Design of Centrifugal Pump Using Differential Geometry Methods. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/6715

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

2. Bahaidarah, Haitham M. S. A numerical study of heat and momentum transfer over a bank of flat tubes.

Degree: PhD, Mechanical Engineering, 2005, Texas A&M University

The present study considers steady laminar two-dimensional incompressible flow over both in-line and staggered flat tube bundles used in heat exchanger applications. The effects of various independent parameters, such as Reynolds number (Re), Prandtl number (Pr), length ratio (L/Da), and height ratio (H/Da), on the pressure drop and heat transfer were studied. A finite volume based FORTRAN code was developed to solve the governing equations. The scalar and velocity variables were stored at staggered grid locations. Scalar variables (pressure and temperature) and all thermophysical properties were stored at the main grid location and velocities were stored at the control volume faces. The solution to a one-dimensional convection diffusion equation was represented by the power law. The locations of grid points were generated by the algebraic grid generation technique. The curvilinear velocity and pressure fields were linked by the Semi-Implicit Method for Pressure Linked Equations (SIMPLE) algorithm. The line-by-line method, which is a combination of the Tri-Diagonal Matrix Algorithm (TDMA) and the Gauss-Seidel procedure, was used to solve the resulting set of discretization equations. The result of the study established that the flow is observed to attain a periodically fully developed profile downstream of the fourth module. The strength increases and the size of the recirculation gets larger as the Reynolds number increases. As the height ratio increases, the strength and size of the recirculation decreases because the flow has enough space to expand through the tube passages. The increase in length ratio does not significantly impact the strength and size of the recirculation. The non-dimesionalized pressure drop monotonically decreased with an increase in the Reynolds number. In general, the module average Nusselt number increases with an increase in the Reynolds number. The results at Pr = 7.0 indicate a significant increase in the computed module average Nusselt number when compared to those for Pr = 0.7. The overall performance of in-line configuration for lower height ratio (H/Da = 2) and higher length ratio (L/Da = 6) is preferable since it provides higher heat transfer rate for all Reynolds numbers except for the lowest Re value of 25. As expected the staggered configurations perform better than the in-line configuration from the heat transfer point of view. Advisors/Committee Members: Chen, H. C. (advisor), Anand, Nagamangala K. (advisor), Han, J. C. (committee member), Kihm, K. D. (committee member).

Subjects/Keywords: Flat tube bundles; Finite volume method; Heat exchanger applications; Staggered grid; Curvilinear velocity

…3.1.2 Covariant and Contravariant Unit Vector ... Curvilinear Velocity Components and… …Projections ......... 3.2.1 Covariant and Contravariant Velocity Components ... 3.2.2 Covariant… …and Contravariant Velocity Projections…......... Dependent variables in momentum equations… …3.3.1 Velocity Components in a Cartesian Coordinate System... 3.3.2 Physical Covariant or… …Contravariant Velocity Components . …... 3.3.3 Physical Covariant or Contravariant… 

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Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Bahaidarah, H. M. S. (2005). A numerical study of heat and momentum transfer over a bank of flat tubes. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/2782

Chicago Manual of Style (16th Edition):

Bahaidarah, Haitham M S. “A numerical study of heat and momentum transfer over a bank of flat tubes.” 2005. Doctoral Dissertation, Texas A&M University. Accessed December 03, 2020. http://hdl.handle.net/1969.1/2782.

MLA Handbook (7th Edition):

Bahaidarah, Haitham M S. “A numerical study of heat and momentum transfer over a bank of flat tubes.” 2005. Web. 03 Dec 2020.

Vancouver:

Bahaidarah HMS. A numerical study of heat and momentum transfer over a bank of flat tubes. [Internet] [Doctoral dissertation]. Texas A&M University; 2005. [cited 2020 Dec 03]. Available from: http://hdl.handle.net/1969.1/2782.

Council of Science Editors:

Bahaidarah HMS. A numerical study of heat and momentum transfer over a bank of flat tubes. [Doctoral Dissertation]. Texas A&M University; 2005. Available from: http://hdl.handle.net/1969.1/2782

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