水下回转体外形流体动力性能仿真  

Study on Hydrodynamic Performance Simulation of Underwater Gyroidal Objects Shape

作　　者：胡海豹[1] 潘光[1] 宋保维[1] 刘占一[1] 

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《火力与指挥控制》2008年第9期143-145,共3页Fire Control & Command Control

基　　金：全国优秀博士论文基金资助项目(2002CJ0301)

摘　　要：通过对回转体外形流体动力参数的前瞻性仿真计算研究,探讨了使用FLUENT软件对水下回转体外形流体动力性能进行预测的可行性。在利用该软件对回转体表面流场进行数值仿真时,针对该绕流流场存在回流等特点,合理选择了计算域、计算网格、入口、出口边界条件以及其他流动参数。仿真计算结果与风洞实验对比表明,该方法对水下回转体外形流体动力性能的预测精度较高,且对流场的显示更加详细、直观。所取得的研究成果对水下航行器的外形设计具有重要参考价值,可缩短外形设计周期和节约设计费用。Through study on hydrodynamic performance of shapes, feasibility on prediction of hydrodynamic performance of underwater gyroidal objects shape is discussed in this paper. Aiming at characteristics of this flow field, computation region, grids, boundary conditions and flow parameters are selected reasonably in the numerical simulation. Compared the simulation results with the results of wind- tunnel experiment, prediction accuracy about hydrodynamic performance of gyroidal objects shapes used in this method is higher, and displays of simulation results are more detailed and visual. The result will provide important reference value for design of underwater vehicles, which can shorten the design time and save the expenses.

关 键 词：回转体 流体动力 水下航行器 数值仿真 风洞实验 

分 类 号：O335.3[理学—一般力学与力学基础]