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论文类型：期刊论文

发表时间：2016-01-01

发表刊物：COASTAL ENGINEERING

收录刊物：SCIE、EI

卷号：107

页面范围：14-27

ISSN号：0378-3839

关键字：SPH porous model; SPS turbulence model; Porous structure; Breaking wave

摘要：An improved weakly compressible smoothed particle hydrodynamic (WCSPH) model is developed to model wave motions and turbulent flows through porous structures. The model is based on the Volume Averaged and Favre Averaged Navier-Stokes (VAFANS) equations in which the sub-particle-scale (SPS) turbulence stresses are calculated using an eddy viscosity type model. The resistant forces on the fluid flow caused by the presence of the solid skeleton are expressed in the standard empirical linear and nonlinear forms. By introducing porosity information at fixed background points, the interfaces between different media are treated using the SPH interpolation method. The SPH porous model is validated by available numerical results and experimental data for dam-break wave passing through permeable dam. The validated model is applied to study wave interaction with submerged and emerged rubble-mound breakwaters of two layer porous media and good agreements between the computed. results and the experimental data are obtained, demonstrating the predicative capability of the model in simulating general turbulent flows through porous media. (C) 2016 Elsevier B.V. All rights reserved.