REFINEMENT OF MPS METHOD FOR AVALANCHES USING SIMULATING

Abstract

Moving Particle Semi-implicit (MPS) method is a powerful tool to reproduce flow phenomena with large surface deformations such as avalanches. This study presents some investigations on the constitutive equations for avalanche. Here, we produced a model by applying a combination of Bingham-Dilatant and Hershel-Bulkey constitutive equations. These models were applied to some test cases and evaluated through the comparison with existing experimental data. By using the MPS method, unnatural pressure vibration is resulted. In order to use the MPS method in real structural design, divergence model is employed. This model showed a significant reduction in unnatural pressure vibration.