Incompressible SPH (ISPH) with fast Poisson solver on a GPU
نویسندگان
چکیده
منابع مشابه
Implicit Incompressible SPH on the GPU
This paper presents CUDA-based parallelization of implicit incompressible SPH (IISPH) on the GPU. Along with the detailed exposition of our implementation, we analyze various components involved for their costs. We show that our CUDA version achieves near linear scaling with the number of particles and is faster than the multi-core parallelized IISPH on the CPU. We also present a basic comparis...
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To simulate incompressible flows using SPH, one has to use a discretitized variant of the NavierStokes-Equations for particles. To reach a stable and convergant simulation, the timestep has to be severly limited, especially through the pressure term. To dampen this limitation, various approaches where developed in computergraphics. One of these approaches is the Implicit Incompressible SPH (IIS...
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Enforcing fluid incompressibility is one of the time-consuming aspects in SPH. In this paper, we present a local Poisson SPH (LPSPH) method to solve incompressibility for particle based fluid simulation. Considering the pressure Poisson equation, we first convert it into an integral form, and then apply a discretization to convert the continuous integral equation to a discretized summation over...
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The stability and accuracy of three methods which enforce either a divergence-free velocity field, density invariance, or their combination are tested here through the standard Taylor?Green and spin-down vortex problems. While various approaches to incompressible SPH (ISPH) have been proposed in the past decade, the present paper is restricted to the projection method for the pressure and veloc...
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ژورنال
عنوان ژورنال: Computer Physics Communications
سال: 2018
ISSN: 0010-4655
DOI: 10.1016/j.cpc.2018.01.005