Ye Z, Fan Q, Huang S, Cheng A (2021) A one-dimensional line element model for transient free surface flow in porous media. Liu W-B, Ma D-J, Zhang M-Y, He A-M, Liu N-S, Wang P (2021) A new surface tension formulation in smoothed particle hydrodynamics for free-surface flows. Zong Y, Zhao X, Sun H, Zhu R (2021) An improved cip-based numerical model for simulating free-surface flow with adaptive mesh. The empirical parameter of the nonlinear forces of the porous media is effective in the porous structures. The porosity parameter is the main factor in powering the porous resistance for the impact flow.
CIRCULAR FLOW MODEL FOR FREE
The performed simulations showed the significance of using porous media for free surface flow in controlling the free-falling of a circular cylinder and free surface deformation during the impact processes.
The ISPH scheme is well validated in terms of the free-falling of a circular cylinder and evaluated pressure, and it has a favorable comparison with the experimental results. The Smagorinsky model is used for the turbulence stress and the non-Darcy model is implemented for a porous medium. In the ISPH scheme, a semi-implicit velocity technique is employed with an implicit solution of pressure through the pressure Poisson equation. Introducing the ISPH method can track the large deformation of the free surface throughout the water entrance of a circular cylinder.
The novelty of this work is simulating the impact flow over different porous structures. This work adopts the ISPH method for handling the impact flow of a circular cylinder over a free surface flow saturated by the porous media.
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