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Title: Estimation of shock-cell structure of axisymmetric supersonic free jets
Authors: Mehta, R C
Prasad, J K
Issue Date: Aug-1996
Publisher: NISCAIR-CSIR, India
Abstract: Numerical and experimental results on the supersonic free jets issuing from convergent-divergent conical nozzles of different Mach numbers are presented. In the numerical calculations, the two-stage Runge-Kutta time-stepping scheme is applied assuming inviscid and axially symmetric flow while in the experiments, the flow field was visualized using Schlieren photography and static pressures along the centre line of the free jets are measured using static probe. Effects of exit Mach number and expansion ratio on shock-cell structure are studied with the help of Schlieren pictures, isobar contours and velocity vector plot. A linear relationship between shock cell length and β2 is obtained for exit Mach numbers of 2.2, 2.6 and 3.1 and expansion ratio in  the range1.2-0.4.
Page(s): 141-147
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.03(4) [August 1996]

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