某无人水下航行器阻力特性数值模拟

Numerical Simulation of Resistance Characteristics of an Unmanned Underwater Vehicle

摘要:

基于 FLUENT 流体 CFD 软件，对带鳍舵布局的某无人水下航行器进行了阻力特性数值模拟。选择了合理入口边界条件、出口边界条件、压力与速度的耦合求解方法。数值模拟结果与风洞实验对比表明： 该方法对无人水下航行器的阻力特性的预测精度较高，且对流场的显示更加详细、直观。所取得的研究成果对带鳍舵布局无人水下航行器的外形设计具有一定的参考价值。

Abstract:

Based on FLUENT fluid CFD software，the resistance characteristics of an unmanned underwater vehicle with fins and rudders have been simulated. The reasonable inlet boundary conditions，outlet boundary conditions and the coupling method of pressure and velocity are selected. Compared with the wind tunnel test，the numerical simulation results show that this method has higher prediction accuracy for the resistance characteristics of the unmanned underwater vehicle and more detailed and intuitive display of the flow field. The research results have a certain reference value for the shape design of unmanned underwater vehicle with fins and rudders.