摘要
采用Fluent软件中的k-ε湍流模型对水下航行体模型水下运动的超空泡形成过程进行了数值模拟,分析了饱和蒸气压和航行深度与水下航行体空泡形态的关系,研究了航行深度和温度对航行体阻力系数和头部压力的影响。研究表明,航行体带空泡航行时,空泡形态随航行深度的增加而减小,阻力系数随航行深度的增加而增大,饱和蒸气压对空泡形态和阻力系数的影响不大。研究结果对水下航行体超空泡技术研究具有参考价值。
A series of numerical simulations for the generation of supercavitation are carried out with Fluent using k-ε turbulence model. The relationship between the cavity shape and the depth is obtained. The influence of submerged depth and vapor pressure on the drag coefficient and the pressure of the head is analyzed. The results show that the cavity size decreases and the drag coefficient increases with the increase of submerged depth. The vapor pressure has little influence on cavity size and drag coefficient.
出处
《科技导报》
CAS
CSCD
北大核心
2009年第8期23-26,共4页
Science & Technology Review
