Journal
APPLIED OCEAN RESEARCH
Volume 37, Issue -, Pages 120-126Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apor.2012.05.003
Keywords
Particle methods; 3D MPS method; Pressure enhancement and stabilization; 3D higher order Laplacian model
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A 3D higher order Laplacian model is proposed for enhancement and stabilization of pressure calculation by the MPS (Moving Particle Semi-implicit [1]) method. The 3D higher order Laplacian model is derived by taking the divergence of a particle-based gradient model [2] and is then applied for discretization of Laplacian of pressure corresponding to the Poisson Pressure Equation (PPE). The enhancing and stabilizing effect of the 3D higher order Laplacian model is shown through simulations of two benchmark tests, namely, designed exponentially excited sinusoidal pressure oscillations [3] and a schematic dam break with an obstacle [4]. (C) 2012 Elsevier Ltd. All rights reserved.
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