摘要
采用ALE技术,应用有限体积法对二维细长鱼类的非定常水动力学性能展开了数值计算。分析了单只细长鱼的波状摆动推进问题,得到尾部推进力型的反卡门涡街,并讨论了摆动频率和摆动振幅对鱼类推进作用的影响。
In this paper, two-dimensional numerical simulations were performed to study the unsteady viscous flow field around fish-like swimming foils using the ALE method and dynamic mesh method. The reversed Kannan Vortex street was get and the effect of the undulate frequency and amplitude on the propulsive performance of a single fish is analyzed.
出处
《水科学与工程技术》
2007年第6期26-28,共3页
Water Sciences and Engineering Technology
关键词
水动力学特性
波状推进
数值模拟
hydrodynamic characteristics
undulate propulsion
numerical simulation
