AM06-05-004 Simulation of the flow around a planing boat by a particle method with variable spatial resolution

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  • AM06-05-004 解像度可変型粒子法による水上滑走艇周りの流れのシミュレーション(自由表面流体力学(1),一般講演)

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Particle methods have some advantages over grid based ones for the simulation of the flow around a planing boat. However, particle methods require very long computational time when they are used in high spatial resolution case, due to the increased number of particles and interactions among them. For the reduction of computational costs, present authors propose a new technique. In this Variable mass Moving Particle Semi-implicit (VMPS) method, particles are locally divided or united to control the number density of particle according to the required local spatial resolutions. Some examples show that VMPS method reduces the calculation time compared with the MPS method.

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