Numerical Simulation of Typical Free Surface Flow with SPH-ALE

doi:10.19596/j.cnki.1001-246x.7551

Abstract

Abstract: We present simulation of two typical free surface flows using Smoothed Particle Hydrodynamics-Arbitrary Lagrangian Eulerian(SPH-ALE) method basd on Rimann-solver. A first order kernel correction pressure integral method is presented, which was used to estimate pressure of boundary by integrating water particles within the kernel radius influence. Distribution of pressure field and evolution of free surface are given, and compared with experimental data and numerical solutions. It shows that SPH-ALE method is more accurate and reliable than traditional SPH in pressure calculation of flow field. It has a higher precision in solving strong nonlinear free surface flows.

Key words: free surface flow, Riemann solver, SPH ALE, pressure oscillation

CLC Number:

O351.2

SHANGGUAN Zining, ZHOU Xiuli, SONG Xin, CHEN Qian. Numerical Simulation of Typical Free Surface Flow with SPH-ALE[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2017, 34(6): 641-650.

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