Parallel processing of three-dimensional navier-stokes equations for compressible flows

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2005

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Şişman, Tahsin Çağrı

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The aim of this study is to develop a code that is capable of solving three-dimensional compressible flows which are viscous and turbulent, and parallelization of this code. Purpose of parallelization is to obtain a computational efficiency in time respect which enables the solution of complex flow problems in reasonable computational times. In the first part of the study, which is the development of a three-dimensional Navier-Stokes solver for turbulent flows, first step is to develop a two-dimensional Euler code using Roe flux difference splitting method. This is followed by addition of sub programs involving calculation of viscous fluxes. Third step involves implementation of Baldwin-Lomax turbulence model to the code. Finally, the Euler code is generalized to three-dimensions. At every step, code validation is done by comparing numerical results with theoretical, experimental or other numerical results, and adequate consistency between these results is obtained. In the second part, which is the parallelization of the developed code, two-dimensional code is parallelized by using Message Passing Interface (MPI), and important improvements in computational times are obtained.

Subject Keywords

Mechanical engineering.

URI

http://etd.lib.metu.edu.tr/upload/12606544/index.pdf
https://hdl.handle.net/11511/15448

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

T. Ç. Şişman, “Parallel processing of three-dimensional navier-stokes equations for compressible flows,” M.S. - Master of Science, Middle East Technical University, 2005.