Effect of gas compressibility on the characteristics of a synthetic jet flow  

作　　者：丁英涛 苏日娜 李博 

机构地区：[1]School of Information and Electronics,Beijing Institute of Technology

出　　处：《Journal of Beijing Institute of Technology》2012年第4期442-446,共5页北京理工大学学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China (60843005); BIT Fundamental Research Foundation( 20110542016)

摘　　要：Numerical simulations are performed to investigate the effects of gas compressibility on the synthetic jet flow. A slot synthetic jet and a circular orifice synthetic jet are simulated assuming 2D and axis-symmetric behavior. The velocity of orifice, frequency response and the compressibility are studied through simulation. The numerical results are validated against existing experimental and analytical data, and good agreement are obtained, Gas compressibility effects on the synthetic jet flow are discussed. In conclusion, for the two kinds of different synthetic jets studied in this paper, the critical values of Mach number are 0. 082 and 0. 033.Numerical simulations are performed to investigate the effects of gas compressibility on the synthetic jet flow. A slot synthetic jet and a circular orifice synthetic jet are simulated assuming 2D and axis-symmetric behavior. The velocity of orifice, frequency response and the compressibility are studied through simulation. The numerical results are validated against existing experimental and analytical data, and good agreement are obtained, Gas compressibility effects on the synthetic jet flow are discussed. In conclusion, for the two kinds of different synthetic jets studied in this paper, the critical values of Mach number are 0. 082 and 0. 033.

关 键 词：synthetic jet gas compressibility gumerical simulation Mach number 

分 类 号：O358[理学—流体力学]