鱼雷技术Issue(4)：246-249,4.
一种水下航行体附加质量数值计算方法
A Numerical Computation Method of Additional Mass for Underwater Vehicle
周景军 1李育英 1项庆睿1
作者信息
- 1. 中国船舶重工集团公司 第705研究所，陕西 西安，710075
- 折叠
摘要
Abstract
A high-precision and high-efficiency method of computing additional mass for an underwater vehicle is pro-posed by solving the 3-D N-S equations based on the relative motion principle. This method is convenient to compute the additional mass for an underwater vehicle with complex shapes. The additional inertia force (moment) is achieved from the difference of hydrodynamics of fluids in unsteady and steady motions, then the additional mass is obtained. By adding the source term to the momentum equation, the unsteady flow field is solved to simulate the real structure of flow field, and the difficulty generated by complex grid rebirth in using the dynamic grid is avoided. The accuracy of the proposed method is also assured because of adopting the same grid. The validity of the proposed method is verified by the exact solution of ellipsoid.关键词
水下航行体/附加质量/数值计算方法/相对运动Key words
underwater vehicle/additional mass/numerical computation method/relative motion分类
武器工业引用本文复制引用
周景军,李育英,项庆睿..一种水下航行体附加质量数值计算方法[J].鱼雷技术,2013,(4):246-249,4.
