NUMERICAL SIMULATION OF FREE SURFACE MUDFLOW USING INCOMPRESSIBLE SPH

10.22099/ijstc.2013.940

Abstract

In this paper, Incompressible SPH (ISPH) is used to simulate free-surface mudflow for two case studies, including dambreak and flow under a gate. The mixture of water and sediment in mudflow is treated as a non-Newtonian fluid. Mass and momentum conservation equations in a 2-D  Lagrangian  frame,  along  with  the  Herschel-Bulkley  rheology  model,  were  solved  to  simulate mudflow  using  ISPH.  Further,  a  Large  Eddy  Simulation  (LES)  model  was  used  to  evaluate  the effect  of  turbulence  on  the  free  surface  flow  for  these&nb