Numerical Simulation of Three Dimentional Water Sloshing Problems Using Boundary Element Methods

• Main Authors: Ko, Chia-Hao, 葛家豪
• Other Authors: Y. H. Chen, W. S. Hwang
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/28141788646586426351

碩士 === 國立臺灣大學 === 造船工程學系 === 86 === This study discusses three-dimensional nonlinear liquid sloshing problems for the Tuned Liquid Damper(TLD), namely nonlinear oscillation of liquid in a tank subjected to horizontal forced vibrations. First, the liquid is assumed to satisfy potential theory. By this assumption, the Boundary Element Method is applied to solve the potential and velocity distributions on the boundary of tank. Next, the Taylor series expansion and Lagrangian description are used to compute the position and relative unknowns of the liquid particles on the free surface. In the present study, the free surface movement in the container due to horizontal harmonic forced oscillation and the effectiveness in vibration reducing of three-dimensional rectangular and cylindrical TLD tanks are computed and discussed. The study also presents the behavior of the iterative techniques for solving linear systems in this liquid sloshing problems.