抄録
We combined Overset Grid with Soroban Grid to calculating free surface flow around objects. We proposed Overset-Soroban grid system as one of adaptive moving grid, which is more feasible and effective than conventional lattice methods to solve a flow field with a complicated boundary shape. We used CIP-CSL2 method that is conservative Semi-Lagrangian scheme and M-type CIP method to calculate the advection term with Ovserset-Sroban grid system. We examined adaptive grid movement and local mesh refinement to computations of an interaction between solid and free surface flow.