비특이화 간접경계적분방정식방법을 이용한 2차원 수치수조 개발 및 적용

Abstract

In this study, a two-dimensional fully nonlinear transient wave numerical tank is developed using a desingularized indirect boundary integral equation method. Numerical simulations are calculated in the time domain using the forth order Runge-Kutta method. A mixed Eulerian-Laglangian approach is adopted to reconstruct the boundaries of free surface at each time step. The interpolating method of the Gaussian radial basis functions type artificial neural network is used to calculate the gradient of the free surface. An numerical damping zone is used to minimize reflective wave in down stream region. In order to validate the accuracy of the numerical wave tank, numerical simulations are carried out and these results are compared with previous published data.