A study on an evaluation method of fluid pressure caused by run-up Tsunami acting on an architectural structure: Part 1 An applicability of numerical simulation with the MPS method

The authors propose the suitable way of simulation with the MPS method when run-up tsunami acts on architecture in this paper. 1. The MPS method that is semi implicit method costs a lot of computational time. For this reason, to use the wave maker with the functionality of inflow-outflow for decreasing particle number lead to high-speed simulation. 2. In the MPS method, detection accuracy of free surface is low. and it leads to pressure oscillation. The new way focusing on continuity of free-surface-particles is able to improve the accuracy of detecting free surface, and to reduce pressure oscillation. 3. The authors reproduce Tsunami acting on an architecture with the tank experiment and the MPS method with the new way developed and the proposed method, and compare tsunami pressure acting on the front of it. As a result, the MPS method is able to simulate Tsunami acting on architecture including the impulsive pressure.