Validation of DualSPHysics for 3D dam-break flow with different types of obstacles
Rustan , M.Rizqie Arbie , Acep Purqon

Department of Physics, Bandung Institute of Technology, Bandung, Indonesia

Abstract

DualSPHysics has been widely used in fluid flow modeling and its interaction with solids. In this study, 3D dam-break flow interacting with various types of obstacles are numerically simulated by the smoothed particle hydrodynamics (SPH) method. To validate the DualSPHysics, the first step involves simulating a 3D dam-break flow against a vertical wall. The results from the DualSPHysics simulation are then compared with experimental data and outcomes from other numerical method. Then, we apply DualSPHysics for 3D dam-break flows against a perpendicular obstacle, a inclined obstacle with the angle of inclination 37, 45, and 53, and a curve obstacle with the curvature angle 30, 60, and 90 are simulated. Pressure are analyzed at various positions within the simulation domain as a function of time. The results show that DualSPHysics successfully models the fluid from a dam-break interacting with obstacles accurately. The curvature obstacle with angle 60 can be considered one of the optimal designs for minimizing the collision force of the fluid following a dam-break.

Keywords: DualSPHysics, fluid, dam-break, SPH

Topic: Others