锥柱航行体肩空泡界面效应对头锥面受力的影响研究  

Influence of cavitation interface effect of cone-column vehicle on the forces of the cone

作　　者：孔德才 权晓波 魏海鹏 燕国军 尤天庆 

机构地区：[1]北京宇航系统工程研究所,北京100076

出　　处：《水动力学研究与进展（A辑）》2015年第2期201-207,共7页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金项目(51209004)~~

摘　　要：航行体水下高速运动时会发生空化现象,形成空泡附着在航行体表面。该文通过数值计算的方法,分析了空泡界面对头锥面附近流场压力的影响。计算结果表明:界面效应使得流场压力和头锥面表面压力升高,头锥面轴向力增大;不同攻角下,空泡形态发生倾斜,界面效应对迎、背流面的影响不同,头锥段法向受力减小;头部半锥角越大,空泡越长且厚,空泡界面效应对流场压力影响也增大。Cavitation occurs when the underwater vehicle moves at high speed and forms bubbles attached to the sail surface. This paper investigates the cavitation interface effects by numerical simulation method. The results show that the interface effect makes the flow field pressure and head cone surface pressure rise, increasing the axial force of the cone. At different angles of attack, the shape of the bubble tilts, and the cavitation interface effects are different between the pressure side and suction side, then the normal force of the cone decreases. The larger half-cone angle, the longer and thicker bubbles, cavitation interface effects increase on the flow field.

关 键 词：锥柱航行体 空泡界面效应 数值模拟 

分 类 号：O352[理学—流体力学]