Abstract
Parallel implementation of unstructured grid solvers for steady viscous flows via domain decomposition method is considered. Various methods for grid partitioning are analysed and a new efficient realisation of a simulated annealing method is developed. The method, being still rather slow, provides grid partition structure superior to ones produced by more fast decomposition methods. This is of primary importance for stationary problems considered in the present paper: grid partition procedure is invoked only a few times (initially and after each grid refinement) during computation in contrast to dynamic problems where the execution time of domain decomposition step is a critical factor. The code has been implemented on a cluster of Sun workstations using PVM communications library. The code has been used to compute 3D internal low-Mach number viscous nonisothermal flows.KeywordsUnstructured GridUnstructured MeshDomain Decomposition MethodSingle Instruction Multiple DataGrid PartitionThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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