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Indexed by:会议论文

Date of Publication:2011-06-19

Included Journals:EI、Scopus

Page Number:32-38

Abstract:Sloshing waves in a three dimensional tank are simulated in potential theory based on a fully nonlinear numerical wave tank (NWT) model. The model is developed by using a time-domain higher-order boundary element method (HOBEM) including a mixed Eulerian-Lagrangian technique and a 4th-order Runge-Kutta scheme as a time marching process. By using an auxiliary velocity potential relating with the original one and the translational velocity of tank (Wu et al 1998), the tank can be fixed in the solving process. Thus the image Green function (Newman, 1992) can be used in the whole fluid domain so that the integrations on the lateral walls and bottom are excluded. It means that only free surface is descritized in the whole calculation domain and the corresponding computational cost and storage are saved. The numerical model is validated against the analytical solutions, experimental data and other published data for 2D and 3D liquid sloshing. Copyright ? 2011 by the International Society of Offshore and Polar Engineers (ISOPE).