Research on Numerical Wave Tank Based on the Improved Moving-Particle Semi-Implicit Method with Large Eddy Simulation

Moving-particle semi-implicit （MPS） method is a new mesh-free numerical method based on Lagrangian particle. In this paper, MPS method is applied to the study on numerical wave tank. For the purpose of simulating numerical wave, we combine the MPS method with large eddy simulation （LES） which can si...

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Bibliographic Details
Published inShanghai jiao tong da xue xue bao Vol. 19; no. 2; pp. 226 - 232
Main Author 余谦 张怀新 孙学尧
Format Journal Article
LanguageEnglish
Published Heidelberg Shanghai Jiaotong University Press 01.04.2014
Subjects
Architecture
Computational fluid dynamics
Computer Science
Computer simulation
Electrical Engineering
Engineering
Fluid flow
Large eddy simulation
Life Sciences
Materials Science
Mathematical models
Tanks
Turbulence
Turbulent flow
wave-making
O 357.1
improved moving-particle semi-implicit (MPS) method
large eddy simulation (LES)
numerical wave tank
Online AccessGet full text
ISSN1007-1172
1995-8188
DOI10.1007/s12204-014-1493-7

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Summary:Moving-particle semi-implicit （MPS） method is a new mesh-free numerical method based on Lagrangian particle. In this paper, MPS method is applied to the study on numerical wave tank. For the purpose of simulating numerical wave, we combine the MPS method with large eddy simulation （LES） which can simulate the turbulence in the flow. The intense pressure fluctuation is a significant shortcoming in MPS method. So, we improve the original MPS method by using a new pressure Poisson equation to ease the pressure fluctuation. Divergence- free condition representing fluid incompressible is used to calculate pressure smoothly. Then, area-time average technique is used to deal with the calculation. With these improvements, the modified MPS-LES method is applied to the simulation of numerical wave. As a contrast, we also use the original MPS-LES method to simulate the wave in a numerical wave tank. The result show＇s that the new method is better than the original MPS-LES method.
Bibliography:YU Qian, ZHANG Huai-xin, SUN Xue-yao（1 School of Naval Architecture, Ocean and Civil Engineering; 2. State Key Laboratory of Ocean Engineering Shanghai Jiaotong University, Shanghai 200240, China）
31-1943/U
improved moving-particle semi-implicit （MPS） method, large eddy simulation （LES）, numerical wave tank, wave-making
Moving-particle semi-implicit （MPS） method is a new mesh-free numerical method based on Lagrangian particle. In this paper, MPS method is applied to the study on numerical wave tank. For the purpose of simulating numerical wave, we combine the MPS method with large eddy simulation （LES） which can simulate the turbulence in the flow. The intense pressure fluctuation is a significant shortcoming in MPS method. So, we improve the original MPS method by using a new pressure Poisson equation to ease the pressure fluctuation. Divergence- free condition representing fluid incompressible is used to calculate pressure smoothly. Then, area-time average technique is used to deal with the calculation. With these improvements, the modified MPS-LES method is applied to the simulation of numerical wave. As a contrast, we also use the original MPS-LES method to simulate the wave in a numerical wave tank. The result show＇s that the new method is better than the original MPS-LES method.
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ISSN:1007-1172
1995-8188
DOI:10.1007/s12204-014-1493-7