Mixing Characteristics of Elliptical Jet Control with Crosswire

International Conference on Advances in Materials and Manufacturing Applications 2017

Manigandan, S.^1 ; Vijayaraja, K.^2

Department of Aeronautical, Sathyabama University, Chennai

600119, India^1

Department of Aeronautical, KCG College of Technology, Chennai

600119, India^2

关键词: Elliptical jets;    Mixing characteristics;    Mixing efficiency;    Mixing promotion;    Nozzle pressure ratio;    Pitot pressure;    Shock cell structure;    Wave formation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/310/1/012163/pdf
DOI  :  10.1088/1757-899X/310/1/012163

来源: IOP

【 摘 要 】

The aerodynamic mixing efficiency of elliptical sonic jet flow with the effect of crosswire is studied computationally and experimentally at different range of nozzle pressure ratio with different orientation along the minor axis of the exit. The cross wire of different orientation is found to reduce the strength of the shock wave formation. Due to the presence of crosswire the pitot pressure oscillation is reduced fast, which weakens the shock cell structure. When the cross wire is placed at center position we see high mixing along the major axis. Similarly, when the cross wire is placed at 1/4 and 3/4 position we see high mixing promotion along minor axis. It also proves, as the position of the cross wire decreased along minor axis there will be increase in the mixing ratio. In addition to that we also found that, jet spread is high in major axis compared to minor axis due to bifurcation of jet along upstream.