水下无人系统学报2019，Vol.27Issue(1)：20-24,5.DOI:10.11993/j.issn.2096-3920.2019.01.004
不同外形空化器绕回转体超空化特性试验研究
Experimental Study on Supercavitation Characteristics around Axisymmetric Body with Different Shape Cavitators
摘要
Abstract
To obtain the influence of head-shaped cavitator parameters on the characteristics of supercavitation flow field, the high-speed flow display technology and the force measuring technology with three-point force balance are employed to study the effect of cavitator with different shapes on the supercavitation characteristics of axisymmetric body on the high-speed water tunnel test platform. Supercavitation flows around the axisymmetric body are generated via artificial ventilation by the cavitators with four shapes. The cavity morphology and resistance fluctuation around the axisymmetric body under different working conditions are obtained. Results show that each cavitator can form stable and transparent cavity. For the cavitator with a certain shape, the higher the velocity of incoming flow is, the larger the cavity size becomes. According to the drag coefficient, the descending order is the concave-shaped cavitator, the truncated cone-shaped cavitator, the disk-shaped cavitator, and the inverted cone-shaped cavitator. This research may provide a reference for the head shape design of supercavitating projectile and the design of hydrodynamic layout.关键词
空化器/回转体/超空化/高速水洞试验/空泡Key words
cavitator/axisymmetric body/supercavitation/high-speed water tunnel test/cavity分类
军事科技引用本文复制引用
王瑞,党建军,姚忠..不同外形空化器绕回转体超空化特性试验研究[J].水下无人系统学报,2019,27(1):20-24,5.基金项目
国家自然科学基金项目(51579209) （51579209）
青年托举工程(2016QRNC001). （2016QRNC001）
