Weakly compressible moving particle semi-implicit method (WC-MPS) with large-eddy simulation (LES) turbulence model for numerical simulation of dam-break flows

作者：Liu, Yong Tao; Ma, Ning; Zhu, Ren Qing; Gu, Xie Chong

来源：Journal of Ship Mechanics, 2014, 18(12): 1415-1423.

DOI：10.3969/j.issn.1007-7294.2014.12.001

• Comparative studies
• Dam-breaks
• Equation of state
• Experimental validations
• Free surfaces
• Moving particle semiimplicit method
• Smagorinsky constants
• WC-MPS

In order to simulate the free surface flows, this paper employs a Weakly Compressible Moving Particle Semi-implicit method (WC-MPS) with large-eddy simulation (LES) turbulence model. For this method, the pressure field is obtained efficiently by Tait's equation of state, and the turbulence terms are determined by the LES Smagorinsky model. Applying this WC-MPS method, considering two dam-break cases, focusing on the effects of the particle distance and Smagorinsky constant on the numerical results, the numerical comparative studies and the experimental validation studies are carried out, and the conclusion drawn is that the numerical model with a small particle distance and a large Smagorinsky constant has a good simulation results for the free surface flow with largely deformed free surface profiles.

• 出版日期2014
• 单位上海交通大学