Nozzle aspect ratio effect on the mixing of Mach 2 elliptic free jet, issuing from convergent–divergent elliptic nozzles of aspect ratios 2, 3, and 4, in the presence of adverse and marginally favorable pressure gradients at the nozzle exit has been studied experimentally. The results show that AR4 jet enjoys better mixing than AR2 and AR3 jets at all nozzle pressure ratios. The AR2 and AR3 jets displayed axis switching, whereas there is no axis switching for AR4 jet. The shadowgraph shows that the waves in AR4 jet are weaker than those in AR2 and AR3 jets.
Nozzle Aspect Ratio Effect on Supersonic Elliptic Jet Mixing
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received February 22, 2016; final manuscript received May 9, 2017; published online July 21, 2017. Assoc. Editor: Feng Liu.
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Aravindh Kumar, S. M., and Rathakrishnan, E. (July 21, 2017). "Nozzle Aspect Ratio Effect on Supersonic Elliptic Jet Mixing." ASME. J. Fluids Eng. October 2017; 139(10): 101103. https://doi.org/10.1115/1.4036823
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