Numerical Simulation of Complex Flows using the Portable Extensible Toolkits for Scientific Computing(PETSc)

摘要

In this paper, we explore the feasibility of the Portable ExtensiblernToolkits for Scientific Computing (PETSc) for developing CFD softwares withrnparallelization ability. In this work, we have solved the Euler equations with thernfinite volume method on structured grids using PETSc. The time integrationrnscheme is the 4-stage SSP Runge-Kutta method, and the fifth-order weightedrnessentially non-oscillatory (WENO) scheme is used for spatial discretization. Tworntest cases including double mach reflection and Rayleigh-Taylor instability havernbeen carried out. Numerical results have demonstrated great potential of usingrnPETSc for large scale simulation both in terms of efficiency and applicability.