| 带推力矢量喷管导弹水下发射的流动数值模拟 |
| |
| 引用本文： | 程用胜,刘桦,邓康耀.带推力矢量喷管导弹水下发射的流动数值模拟[J].船舶力学,2008,12(6):845-857. |
| |
| 作者姓名： | 程用胜 刘桦 邓康耀 |
| |
| 作者单位： | 上海交通大学,上海,200240;上海交通大学,上海,200240;上海交通大学,上海,200240 |
| |
| 摘 要： | 提出了一种带推力矢量喷管导弹水下发射的三维流体动力数值模拟方法.三维气流场计算基于贴体坐标下欧拉方程,采用NND方法进行数值离散.三维水流场则采用基于势流理论的Hess-Smith面无法.运用混合的欧拉一拉格朗日方法跟踪气、水界面的变化.水流场和气流场的耦合计算通过水气界面处压力和法向速度连续的匹配条件来实现.通过数值实验,研究了燃气泡的三维特征和喷管摆角对流体动力载荷的影响.
|
| 关 键 词： | 燃气泡 三维 水下发射 激波 喷管 |
Numerical Simulation of the Fluid Flows Around a Missile with Thrust-Vectoring Control System Launched Underwater |
| |
| CHENG Yong-sheng,LIU Hua,DENG Kang-yao.Numerical Simulation of the Fluid Flows Around a Missile with Thrust-Vectoring Control System Launched Underwater[J].Journal of Ship Mechanics,2008,12(6):845-857. |
| |
| Authors: | CHENG Yong-sheng LIU Hua DENG Kang-yao |
| |
| Institution: | CHENG Yong-sheng,LIU Hua,DENG Kang-yao(Shanghai Jiao Tong University,Shanghai 200240,China) |
| |
| Abstract: | The gas and water flows on a missile with thrust-vectoring control system launched under-water are numerically studied.For the three-dimensional gas flows,the explicit Non-oscillatory and Non-free-parameter Dissipation(NND) difference scheme is utilized to solve the governing equations,i.e.the Euler equations,in the body-fitted coordinates.For the three-dimensional potential water flows,the Laplace equation is solved with the Hess-Smith method based on the boundary element method.The hybrid Euler-Lagrange f... |
| |
| Keywords: | exhausted gas bubble three-dimensional missile launched underwater shock wave nozzle |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
