Publication: Discritization and parallel performance of an unstructured finite volume Navier-Stokes Solver

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Title	Discritization and parallel performance of an unstructured finite volume Navier-Stokes Solver
Authors/Editors*	S.A. Mohsen Karimian, Anthony G. Straatman
Where published*	International Journal for Numerical Methods in Fluids
How published*	Journal
Year*	2006
Volume	52
Number	0
Pages	591-615
Publisher	John Wiley & Sons, Ltd.
Keywords	finite-volume method, parallel computing, unstructured grid, incompressible flow
Link	http://www3.interscience.wiley.com/cgi-bin/fulltext/112430029/PDFSTART
Abstract	The discretization, parallelization and performance of an implicit, unstructured, time-dependent Computational Fluid Dynamics code is described. A detailed description is provided of the improvements made on second-order accurate tools for spatial interpolation and gradient calculation to discretize the Navier-Stokes equations in an unstructured framework. The main goal in the development of the discretization tools was to ensure a scalable and accurate parallel code. The performance of the discretization tools has been validated using standard bench-mark problems for non-uniform, non-orthogonal grids. Parallelisation of the code is done within the PETSc framework using a single-program-multiple-data (SPMD) parallelization model. The resulting parallel code is shown to scale linearly within the limit of the available number of processors.