某水下航行体尾翼展开过程中流场的数值模拟

NUMERICAL SIMULATION OF FLOW FIELD FOR UNDERWATER VEHICLE DURING EMPENNAGE-EXPANDING

利用Pro／E软件对水下航行体进行了实体建模．使用Fluent 6．0软件,应用三维黏性定常不可压缩Navier-Stokes方程,k-ε两方程湍流模型,采用有限体积法对水下航行体尾翼展开过程中的流场和载荷进行了数值仿真计算,根据所得结果对水下航行体的展开规律进行了分析计算．对照实验结果,说明了该数值解法的正确性,同时表明了数值分析结果对解决工程问题具有实际指导意义,可应用于水下航行体折叠尾翼的设计和改进．

This paper gives a 3D-entity model of the main part of the underwater vehicle by use of Pro/E software. Based on the 3D Navier-Stokes equations for viscous steady imcompressible flow and two-equation k-ε turbulent model, the flow field and hydrodynamic load of underwater vehicle during empennage-expanding is numerically simulated with the finite volume method. The empennage-expanding is analyzed by the use of the simulation results. Comparing with the experimental results, the numerical analysis method is justified, which may be useful for analyzing engineering problems.