VALIDATION OF THE STATIC PRESSURE AND WAVE PRESSURE BY MPS WITH NEW GRADIENT OPERATOR

Abstract

Accuracy of a highly precised Moving-particle semi-implicit (MPS) method, proposed by the authors, is compared with that of the traditional MPS method on the static fluid pressure and water wave propagation. The MPS method is modified with a precise estimation of the gradient. In a static fluid analysis, a good accuracy is obtained in the modified MPS for static pressure than in the original MPS. In case of progressive water wave propagation analysis, the oscillation of wave pressure can also be simulated with high accuracy. The study suggests that the proposed method for the gradient operator can contribute to improve the accuracy of the MPS method.