哈尔滨商业大学学报（自然科学版）Issue(5)：609-613,5.
水下航行体超空泡减阻数值模拟
Numerical simulation study of drag reduction of supercavity flow around underwater vehicle
摘要
Abstract
The drag reduction characteristic of the flow around underwater vehicle is simula-ted based on the homogeneous equilibrium theory by using commercial CFD Code Fluent 6.3. The drag coefficient change law , force condition and drag reduction characteristics of the ve-hicle were studied in this paper .When the supercavity forms around the vehicle , the pres-sure coefficient decreased , and the viscous drag coefficient almost decreased to zero .The to-tal drag coefficient decreases greatly compared with non -cavitating flow around vehicle and the streamlined ones .The head of vehicle bears almost all of the drag , and the drag beard by the latter of vehicle decreased almost to zero .The supercavitation forms easily as the cavita-tor diameter increased , but the drag reduction ability of supercavitation decreased .When the cavitator diameter was too small , the supercavitation can ’ t form, and the drag reduction characteristic of supercavitation was ineffective .关键词
水下航行体/超空泡减阻/空泡形态/阻力特性/数值模拟Key words
underwater vehicle/drag reduction of supercavity/cavity shape/drag character-istic/numerical simulation分类
军事科技引用本文复制引用
金大桥,贾林利,王金玲,耿瑞光,王聪..水下航行体超空泡减阻数值模拟[J].哈尔滨商业大学学报（自然科学版）,2015,(5):609-613,5.基金项目
黑龙江省教育厅基金 （）
