Comparative studies on supersonic free jets from nozzles of complex geometry

Comparative studies on supersonic free jets from nozzles of complex geometry •ESTS lobed nozzle, chevron, beveled and conical nozzle of Mach 1.80 are compared.•Acetone PLIF, centerline pitot measurements and CFD computations are conducted.•Mixing enhancement is 430% in ESTS nozzle, chevron (222%) and beveled (138%).•Streamwise vorticity production is widespread in ESTS lobed nozzle.•Mechanism of vorticity production in ESTS nozzle is explained for the first time. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Thermal Engineering Elsevier

Comparative studies on supersonic free jets from nozzles of complex geometry

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
1359-4311
eISSN
1873-5606
D.O.I.
10.1016/j.applthermaleng.2016.01.104
Publisher site
See Article on Publisher Site

Abstract

•ESTS lobed nozzle, chevron, beveled and conical nozzle of Mach 1.80 are compared.•Acetone PLIF, centerline pitot measurements and CFD computations are conducted.•Mixing enhancement is 430% in ESTS nozzle, chevron (222%) and beveled (138%).•Streamwise vorticity production is widespread in ESTS lobed nozzle.•Mechanism of vorticity production in ESTS nozzle is explained for the first time.

Journal

Applied Thermal EngineeringElsevier

Published: Apr 25, 2016

References

  • Novel supersonic nozzles for mixing enhancement in supersonic ejectors
    Rao, S.M.; Jagadeesh, G.
  • Mixing enhancement in supersonic free shear flows
    Gutmark, E.; Schadow, K.; Yu, K.
  • Maximizing pressure recovery using lobed nozzles in a supersonic ejector
    Opgenorth, M.J.; Sederstrom, D.; McDermott, W.; Lengsfeld, C.S.
  • Control of an axisymmetric jet using vortex generators
    Zaman, K.; Reeder, M.F.; Mungal, M.G.
  • Vortex dynamics in jets from inclined nozzles
    Webster, D.R.; Longmire, E.K.
  • Flow structure and acoustics of supersonic jets from conical convergent-divergent nozzles
    Munday, D.; Gutmark, E.; Liu, J.; Kailasanath, K.
  • Observations on the non-mixed length and unsteady shock motion in a two dimensional supersonic ejector
    Rao, S.M.V.; Jagadeesh, G.

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