Paper Title:
Numerical and Experimental Studies on the Supersonic Coaxial Jet Mixing
  Abstract

Coaxial nozzles are an integral part of many engineering systems where mixing of different fluid streams is required. Single noncircular nozzles have been shown to have better mixing characteristics than their axisymmetric counterparts. Therefore, a combination of such nozzles into coaxial configurations is promising. The aim of the present study is to quantitatively determine the effects of the geometry of the primary supersonic jet on the mixing characteristics with the secondary high speed subsonic jet. Measurements of pressure profiles at several positions along central axis of jets using identical facilities and nominally identical experimental conditions were done. The mixing is dominated by the vortex structures that are present in the inner shear layers. The interaction of the vortex structures govern the growth, and entrainment, and mixing of the jet. Also, the experimental results show that the radial and centerline pressure profiles through various coaxial jets has good correlation with the CFD simulation.

  Info
Periodical
Advanced Materials Research (Volumes 354-355)
Chapter
Chapter 4: Fluid Machinery and Engineering
Edited by
Hao Zhang, Yang Fu and Zhong Tang
Pages
691-695
DOI
10.4028/www.scientific.net/AMR.354-355.691
Citation
N. Karthikeyan, B. T. N. Sridhar, "Numerical and Experimental Studies on the Supersonic Coaxial Jet Mixing", Advanced Materials Research, Vols. 354-355, pp. 691-695, 2012
Online since
October 2011
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Price
$32.00
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