A Repulsive Model for Solid Boundary Treatment in Smoothed Particle Hydrodynamics

ZHOU Xue-jun; CHEN Ding; TANG Yi

doi:10.11988/ckyyb.20160375

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Journal of Changjiang River Scientific Research Institute ›› 2017, Vol. 34 ›› Issue (7) : 54-59. DOI: 10.11988/ckyyb.20160375

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A Repulsive Model for Solid Boundary Treatment in Smoothed Particle Hydrodynamics

ZHOU Xue-jun^1,2, CHEN Ding², TANG Yi³

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Abstract

Boundary repulsive method is one of the methods for solid boundary treatment in smoothed particle hydrodynamics (SPH), but the method is difficult to be widely applied due to the lack of unified repulsive model. The short-range repulsive force which describes the acting force between granules in Peridynamic (PD) is introduced to solid boundary treatment model to build a new boundary repulsive model in the framework of SPH. The reliability of the method is verified by two numerical simulation examples including Couette flow and dam-break. Moreover, the repulsive formulation is simple and the parameters are easy to be given. Therefore, the present method provides a new alternative for solid boundary treatment in SPH.

Key words

smoothed particle hydrodynamics (SPH) / repulsive model / peridynamic (PD) / solid boundary / Couette flow

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ZHOU Xue-jun, CHEN Ding, TANG Yi. A Repulsive Model for Solid Boundary Treatment in Smoothed Particle Hydrodynamics[J]. Journal of Changjiang River Scientific Research Institute. 2017, 34(7): 54-59 https://doi.org/10.11988/ckyyb.20160375

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