Adaptive parallel multigrid solution of 2D incompressible Navier-Stokes equations
作者： Jian Wu , Hubert Ritzdorf , Kees Oosterlee , Barbara Steckel , Anton Schüller
DOI: 10.1002/(SICI)1097-0363(19970515)24:9<875::AID-FLD517>3.0.CO;2-N
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摘要: An adaptive parallel multigrid method and an application example for the 2D incompressible Navier-Stokes equations are described. The strategy of adaptivity in sense local grid refinement context is multilevel technique (MLAT) suggested by Brandt. parallelization this on scalable systems based portable communication library CLIC message-passing standards: PARMACS, PVM MPI. specific problem considered work a two-dimensional hole pressure which Poiseuille channel flow disturbed cavity one side channel. Near geometric singularities very fine needed obtaining accurate solution value. Two important issues efficiency algorithms, namely data redistribution criterion, discussed here. For approximate dynamic load balancing, new steps redistributed into distributed memories different processors system block remapping.
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