Numerical study of spatial supersonic flow of a perfect gas with transverse injection of jets |
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Authors: | A O Beketaeva A Zh Naimanova |
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Institution: | 1.Institute of Mathematics,Ministry of Education and Science of the Republic of Kazakhstan,Alma Ata,Kazakhstan |
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Abstract: | Three-dimensional supersonic turbulent flow in the presence of symmetric transverse injection of round jets through slots
in the walls is studied numerically. The simulation is based on Favre averaged Navier-Stokes equations solved using the Beam-Warming
method. The influence of the ratio of the pressure in the jet to that in the flow (pressure ratio) on the spatial interaction
of the injected jet with the oncoming flow is studied. Experimental pressure distributions on the wall near the jet approximated
by curvilinear closed ellipses are reproduced numerically. The mechanism of the formation of two symmetric vortices in the
mixing layer between the jet and the oncoming flow is studied. The results of the calculations are found to be in satisfactory
agreement with the experimental dependence of the length of the separation zone on the pressure ratio of the jet to the flow. |
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