摘要
对半圆形随行波表面流场进行了数值计算及仿真,通过比较随行波表面相对于平板表面的流场变化,分析了随行波表面的减阻特性,进一步研究了随行波的减阻机理。仿真结果证明了“人工涡”的存在,即在随行波波谷内能够产生二次低速流动漩涡,这些漩涡并没有向外扩散而是在随行波内稳定下来,形成“人工涡”。
Semicircular traveling wave surface was numerically computed and simulated. Drag-reduction characteristics of traveling wave were analyzed and the mechanism of drag-reduction was deeply studied by comparing traveling wave surface with plate surface. The results prove that there are second vortexes （called ＂artificial vortexes＂） in the trough of traveling wave, and these vortexes are confined in the trough. Also argument is provided for the theory of ＂second vortexes＂.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2006年第11期3073-3074,3094,共3页
Journal of System Simulation
基金
国家自然科学基金项目(19872056)。
关键词
半圆形随行波
减阻特性
人工涡
第二涡群
semicircular traveling waves
drag-reduction characteristics
artificial vortexes
second vortexes
