【摘要】 采用计算流体力学的方法研究了超空泡水下航行体在高速发射以后的运动规律.采用动态网格,实现了全数值模拟超空泡航行体在水中的运动过程及空泡的生成规律.比较了航行体周围是否产生空泡与航行体是否有推力4种情况,计算结果表明超空泡具有非常好的水下减阻能力.利用超空泡技术可以在不大的推力下使水下航行体的航行速度提高3倍,超空泡航行体应采用火箭发动机动力装置.更多还原

【Abstract】 The moving process of submarine supercavitation vehicle after high-speed launching was investigated by computational fluid dynamics(CFD).The process and the growth of cavitation were simulated numerically by employing dynamic mesh.Four cases whether with supercavitation and whether with thrust were compared.The results indicate that supercavitation has better performance of drag reduction.In the supercavitation state,the submarine vehicle makes the speed increase of 3 times under the conditions of moderate thrust.The power installation of rocket engine should be applied to supercavitation vehicle.更多还原