Step-by-step improvement of MPS method in simulating violent free-surface motions and impact-loads

The violent free-surface motions and the corresponding impact loads are numerically simulated by using the Moving Particle Semi-implicit (MPS) method, which was originally proposed by Koshizuka and Oka [10] for incompressible flows. In the original MPS method, there were several defects including no...

Full description

Saved in:
Bibliographic Details
Published in:Computer methods in applied mechanics and engineering 2011-02, Vol.200 (9), p.1113-1125
Main Authors: Lee, Byung-Hyuk, Park, Jong-Chun, Kim, Moo-Hyun, Hwang, Sung-Chul
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Computational fluid dynamics
Computer simulation
Dam breaking
Dams and subsidiary installations
Defects
Exact sciences and technology
Fluid flow
Fundamental areas of phenomenology (including applications)
Hydraulic constructions
Impact loads
Incompressible flow
Liquid sloshing
Mathematical models
Nonlinear free-surface motions
Physics
Reduced pressure fluctuation
Solid mechanics
Step-by-step improvements
Structural and continuum mechanics
Tanks
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The violent free-surface motions and the corresponding impact loads are numerically simulated by using the Moving Particle Semi-implicit (MPS) method, which was originally proposed by Koshizuka and Oka [10] for incompressible flows. In the original MPS method, there were several defects including non-optimal source term, gradient and collision models, and search of free-surface particles, which led to less-accurate fluid motions and non-physical pressure fluctuations. In the present study, how those defects can be remedied is illustrated by step-by-step improvements in the respective processes of the revised MPS method. For illustration, two examples are studied; (i) dam breaking problem and (ii) liquid sloshing inside a rectangular tank. The improvement of each step is explained and numerically demonstrated. The numerical results are also compared against the experimental results of Martin and Moyce [12] for dam-breaking problem and Kishev et al. [9] for sloshing problem. The numerical results for violent free-surface motions and impact pressures are in good agreement with their experimental data.
ISSN:0045-7825
1879-2138
DOI:10.1016/j.cma.2010.12.001