Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
Online ISSN : 1883-8944
Print ISSN : 1884-2399
New Assessment Criterion of Free Surface for Stabilizing Pressure Field in Particle Method
Hitoshi GOTOHAbbas KHAYYERChiemi HORI
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2009 Volume 65 Issue 1 Pages 21-25

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Abstract

Particle methods, despite their inherent capabilities, have a few drawbacks including spurious pressure fluctuations. Several reasons are supposed to be behind this drawback. One of the important issues contributing to unphysical pressure fluctuations in a particle-based simulation of free-surface flows is related to an insufficient or a too simple criterion for assessment of free-surface particles. In this paper, we propose an auxiliary criterion for a more efficient and accurate assessment of free-surface in a particle-based calculation of incompressible free-surface fluid flows. The proposed criterion is based on the nearly symmetric arrangement of non-free-surface particles and its efficiency is demonstrated.

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© 2009 Japan Society of Civil Engineers
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