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Dual-Time Smoothed Particle Hydrodynamics for Incompressible Fluid Simulation

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arxiv 1904.00861 v5 pith:S2KX4VYS submitted 2019-04-01 physics.comp-ph

Prabhu Ramachandran , Abhinav Muta , Ramakrishna Mokkapati This is my paper · ORCID
classification physics.comp-ph
keywords dual-timeschemesteppingfluidhydrodynamicsincompressiblemethodparticle
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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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  1. An efficient, open source, iterative ISPH scheme

    math.NA 2019-08 conditional novelty 5.0 of 10

    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 C...

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