抄録
Recently, a high-order accurate conservative scheme called IDO^(1)-CF was proposed for solving incompressible fluid flow equations in conservative form. In this study, free surface flow is solved by the IDO-CF and newly proposed boundary estimate method. The interfaces are solved like cut cell method, but all cell flux is calculated by each directional differential operators. The differential operators at the boundaries are solved by Taylor series and the over wrapped cell. Dirichlet and Neumann boundaries could be solved by 3rd-order accuracy. The method also used cell mixing technique to avoid numerical instability for small cell. In this time, CIP-CSL2^(2) interpolation is used for the mixing cell. A broken dam problem was computed as a test by the Ghost Fluid^(5) framework.
