2017 年 73 巻 2 号 p. I_841-I_846
A novel numerical method is developed for simulation of fluid flow interactions with saturated porous media. The method is based on an enhanced version of Incompressible SPH (Smoothed Particle Hydrodynamics) method that solves Navier-Stokes and continuity equations and the effect of porous media is simply represented by considering linear and nonlinear resistance force terms similar to the studies by Ren et al. (2014) or Gui et al. (2015). However, one major difference is that in contrast to previous studies, in the developed method there is no numerical smoothing interface zone, thanks to the implemented enhanced schemes. The numerical method is validated through a set of benchmark tests, namely, flow in a U-tube with porous media (Peng et al., 2017), solitary wave attenuation over a porous bed (Gui et al., 2015) and solitary wave interaction with a submerged porous structure (Wu and Hsiao, 2013).