Refinement of MPS method for practical application to snow avalanches

This paper considers the possible commercial viability of applying the moving particle semi-implicit (MPS) method to avalanches. The MPS method is a powerful tool for reproducing the flow phenomenon with large-scale surface deformation. In order to apply this method to snow avalanches, we modified the original model to introduce constitutive equations of Bingham fluid, dilatant fluid and the erosion-deposition process. The modified model was applied to some cases and evaluated through comparison with experimental results and observed data.