Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 14-27 |
| Number of pages | 14 |
| Journal | Coastal Engineering |
| Volume | 107 |
| Early online date | 31 Oct 2015 |
| DOIs | |
| Publication status | Published - 1 Jan 2016 |
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Keywords
- Breaking wave
- Porous structure
- SPH porous model
- SPS turbulence model
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Improved SPH simulation of wave motions and turbulent flows through porous media. / Ren, Bing (Lead / Corresponding author); Wen, Hongjie; Dong, Ping; Wang, Yongxue.
In: Coastal Engineering, Vol. 107, 01.01.2016, p. 14-27.Research output: Contribution to journal › Article
TY - JOUR
T1 - Improved SPH simulation of wave motions and turbulent flows through porous media
AU - Ren, Bing
AU - Wen, Hongjie
AU - Dong, Ping
AU - Wang, Yongxue
N1 - Funding for this research was provided by: National Natural Science Foundation of China (51179030) Innovative Research Group National Natural Science Foundation of China (51221961)
PY - 2016/1/1
Y1 - 2016/1/1
N2 - 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.
AB - 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.
KW - Breaking wave
KW - Porous structure
KW - SPH porous model
KW - SPS turbulence model
UR - http://www.scopus.com/inward/record.url?scp=84945531988&partnerID=8YFLogxK
U2 - 10.1016/j.coastaleng.2015.10.004
DO - 10.1016/j.coastaleng.2015.10.004
M3 - Article
AN - SCOPUS:84945531988
VL - 107
SP - 14
EP - 27
JO - Coastal Engineering
JF - Coastal Engineering
SN - 0378-3839
ER -