The authors show that an iterative Jacobi/SOR solution of the pressure-Poisson equation within ISPH, combined with a generalized transport velocity and modified wall boundary conditions, is accurate and efficient on CPUs and GPUs.
Dual-Time Smoothed Particle Hydrodynamics for Incompressible Fluid Simulation
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abstract
In this paper we propose a dual-time stepping scheme for the Smoothed Particle Hydrodynamics (SPH) method. Dual-time stepping has been used in the context of other numerical methods for the simulation of incompressible fluid flows. Here we provide a scheme that combines the entropically damped artificial compressibility (EDAC) along with dual-time stepping. The method is accurate, robust, and demonstrates up to seven times better performance than the standard weakly-compressible formulation. We demonstrate several benchmarks showing the applicability of the scheme. In addition, we provide a completely open source implementation and a reproducible manuscript.
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math.NA 1years
2019 1verdicts
CONDITIONAL 1representative citing papers
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An efficient, open source, iterative ISPH scheme
The authors show that an iterative Jacobi/SOR solution of the pressure-Poisson equation within ISPH, combined with a generalized transport velocity and modified wall boundary conditions, is accurate and efficient on CPUs and GPUs.