Fluid Oscilations in Three Dimensional Rectangular Tanks

• Main Authors: Wan-Yuan Lee, 李萬源
• Other Authors: Kaun -Long Shyu
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/12948408330638485366

碩士 === 國立海洋大學 === 造船工程學系 === 82 === Considering the design of both industrial tanks and ship tanks, fluid oscillations in tanks are very important factors to be considered. In this research numerical studies were made of the flow of a viscous fluid in three-dimensional rectangular tanks. Three dimensional Navier-stokes equations and continuity equation are discretized by using finite difference scheme. The convective terms were discretized by using upwind difference and the viscous terms by using centered differences. The fluid surface is defined by single-valued function and is initially defined by specifying the surface height above the bottom of the mesh through the center of each vertical column of cells. Tanks subjected to different exciting accelerations and frequencies were studied. Examples of numerical simulation were compared with the analytical solutions, the results showed good agreement.