变攻角火箭深弹空泡形态及阻力特性研究

利用Fluent软件对火箭深弹在不同攻角状态下的空泡形态及阻力特性进行研究。通过数值模拟的方式分析空化数及攻角对火箭深弹超空泡形态以及阻力特性的影响。研究结果表明,攻角越大,空泡的不对称性越明显,空泡的稳定性越差;火箭深弹的阻力系数、升力系数及力矩系数均随攻角增加而增大。火箭深弹攻角变化的仿真结果与水洞实验结果基本一致。

The Research on Cavity Form and Drag Characteristics of the Rocket Depth Charge with the Different Attack Angle

In order to investigate the supercavity form and the Drag characteristics of the rocket depth charge with the different attack angle,the influence of cavitation number,attack angle on the supercavity form and the Drag characteristics of the rocket depth charge was analyzed by numerical simulation software Fluent.The simulation results show that the larger the attack angle,the more terrible the axial symmetry of cavity form,the less instable the cavity form.The drag coefficient,lift coefficient and torque coefficient increased with the increase of the attack angle.The simulation results were basically consistent with the experiment results.