Application of adaptively refined unstructured grids in DSMC to shock wave simulations

•Performance improvement strategies for an adaptively refined DSMC solver.•Implementation of thermal non-equilibrium models while optimizing memory usage in AMR.•Ideal strong scaling speed-up for up to 4096 processors.•Weak scaling efficiency of 87% for 8192 processors.•Application to 3-D simulation...

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Veröffentlicht in:	Computers & fluids 2018-07, Vol.170, p.197-212
Hauptverfasser:	Sawant, Saurabh S., Tumuklu, Ozgur, Jambunathan, Revathi, Levin, Deborah A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms AMR Boundary value problems Computer simulation Direct simulation Monte Carlo method Distributed processing Double wedge DSMC Fluid dynamics Gas-surface interactions Heat flux High Mach number Hypersonic flow Hypersonics Microprocessors Modelling Morton-Z space filling curve MPI Non-equilibrium Octrees Performance optimization Processors Relaxation Run time (computers) Shock wave boundary layer interactions Shock waves Slip Strong scaling Unstructured grids (mathematics) Weak scaling
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