首页 | 本学科首页   官方微博 | 高级检索  
     检索      

零质量射流与分离控制的数值模拟
引用本文:肖中云,牟斌,陈作斌,刘刚.零质量射流与分离控制的数值模拟[J].空气动力学学报,2006,24(1):46-50.
作者姓名:肖中云  牟斌  陈作斌  刘刚
作者单位:中国空气动力研究与发展中心,四川,绵阳,621000
摘    要:在非定常可压缩方程的求解当中引入预处理方法、多重网格等加速收敛技术,提高了可压缩方法处理低速问题的效率和精度。利用该方法对两个流动控制算例进行了数值模拟,首先模拟了零质量射流的外部流场,从射流中心线上的速度分布、射流宽度等方面均得到了和实验较为一致的结果。之后模拟了不同控制下的绕二维翼型的分离流动,包括有定常吸气和零质量射流,两种方法都不同程度上使分离泡长度缩小,分离区的压力升高,一定程度上显示了两种方法在分离流动控制上的应用潜力。

关 键 词:流动控制  零质量射流  可压缩方程  非定常
文章编号:0258-1825(2006)01-0046-05
收稿时间:2005-01-29
修稿时间:2005-01-292005-03-29

Compressible simulation of active flow control using synthetic jets
XIAO Zhong-yun,MOU Bin,CHEN Zhuo-bing,LIU Gang.Compressible simulation of active flow control using synthetic jets[J].Acta Aerodynamica Sinica,2006,24(1):46-50.
Authors:XIAO Zhong-yun  MOU Bin  CHEN Zhuo-bing  LIU Gang
Institution:China Aerodynamics Research and Development Center , Mianyang Sichuan 621000, China
Abstract:Low-speed time-derivative preconditioning and multigrid schemes are implemented in the Navier-Stokes code to deal with low-mach number unsteady flows.Two simulations are made to testify the method on flow control.First,the external flow fields of synthetic jets are simulated,the residual history shows that the implementation of preconditioning and multigrid schemes improve greatly the efficiency of numerical method,and the mean velocity on the center line,the jet width and velocity distribution are compared well with experimental results.Secondly,the flow control experiments on separation of airfoil are simulated, control methods include steady suction and synthetic jets.Both methods show their ability to favorably effect the flow separation,shortening the length of separation bubble and improving the pressure levels in separation areas in different degrees.
Keywords:flow control  zero mass jet  compressible equations  unsteady
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号