Influences on the Solution Process for Large, Numeric-Intensive Automotive Simulations
ICCS '01 Proceedings of the International Conference on Computational Sciences-Part I
High Resolution Aerospace Applications using the NASA Columbia Supercomputer
SC '05 Proceedings of the 2005 ACM/IEEE conference on Supercomputing
High Resolution Aerospace Applications Using the NASA Columbia Supercomputer
International Journal of High Performance Computing Applications
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A Reynolds-averaged Navier-Stokes solver based on unstructured mesh techniques for analysis of high-lift configurations is described. The method makes use of an agglomeration multigrid solver for convergence acceleration. Implicit line-smoothing is employed to relieve the stiffness associated with highly stretched meshes. A GMRES technique is also implemented to speed convergence at the expense of additional memory usage. The solver is cache efficient and fully vectorizable, and is parallelized using a two-level hybrid MPI-OpenMP implementation suitable for shared and/or distributed memory architectures, as well as clusters of shared memory machines. Convergence and scalability results are illustrated for various high-lift cases.