华中科技大学学报（自然科学版）2013，Vol.41Issue(6)：94-98,5.
变速航行体自然超空泡形态与记忆效应研究
Shapes and memory effects of natural supercavitation of navigating bodies with variable speeds
摘要
Abstract
To quickly obtain the forms of time dependent supercavitation of navigating vehicles with variable speeds and the memory effects on the shapes,based on the principle of independence of cavity section expansion,the enantiomorphous scheme of cavity closure and the equation of motion,the analytic solutions of natural supercavity shape of underwater vehicles with a constant thrust or acceleration were deduced by the relations of the relative time axis to the absolute one and the inertial frame to the moving coordinate system.The expresses of cavity parameters were obtained.The results of the supercavitation shapes of vehicles in inertia motion were validated by the empirical formula.Supercavitation memory effects of projectiles and vehicles with a constant acceleration were analyzed by examples,and some relations of the cavitation number,cavitator radius and acceleration with memory effects were obtained.The conclusions show that the smaller the cavitation number is,the bigger the cavitator radius is,the higher the acceleration is,and the more significant the memory effect is.关键词
水下航行体/变速运动/超空泡/独立性原理/空泡形态/记忆效应Key words
underwater vehicle/ variable speed motion/ supercavity/ independence principle/ cavity shape/ memory effects分类
数理科学引用本文复制引用
李魁彬,王安稳,毛柳伟,付书强..变速航行体自然超空泡形态与记忆效应研究[J].华中科技大学学报（自然科学版）,2013,41(6):94-98,5.基金项目
国家自然科学基金资助项目(10772196). （10772196）
