Investigation of screech tone elimination in an underexpanded supersonic jet

1983 ◽  
Keyword(s):  
Supersonic Jet ◽  
Screech Tone ◽  
Underexpanded Supersonic Jet

Numerical study of the ejection properties of a jet flowing into flooded space

2020 ◽  
Author(s):  
A.Yu. Lutsenko ◽  
V.A. Kriushin
Keyword(s):  
Pressure Distribution ◽  
Nozzle Exit ◽  
Software Package ◽  
Numerical Study ◽  
Supersonic Jet ◽  
Underlying Surface ◽  
Ansys Fluent ◽  
Fluent Software ◽  
Underexpanded Supersonic Jet ◽  
Jet Axis

The purpose of the study was to carry out a numerical simulation of the interaction of an underexpanded supersonic jet flowing into a flooded space with a normally located obstacle, and with the underlying surface. We performed the calculations in the ANSYS Fluent software package and presented flow patterns. For the case when the obstacle is located normally to the axis of the jet, we compared the pressure distribution in the radial direction with experimental data and made a conclusion about the changes in the integral load on the wall with a change in the distance to the nozzle exit. For the case when the obstacle is parallel to the jet axis, we presented the pressure distribution along the wall in the plane of symmetry, estimated the relative net force acting on the underlying surface, analyzed the nature of its change at various values of the off-design coefficient, the Mach number on the nozzle exit and the distance to the jet axis.

Effect of a tab on the aerodynamical development and noise of an underexpanded supersonic jet

2013 ◽  
Vol 341 (9-10) ◽  
pp. 659-666 ◽  
Author(s):  
Benoît André ◽  
Thomas Castelain ◽  
Christophe Bailly
Keyword(s):  
Supersonic Jet ◽  
Underexpanded Supersonic Jet
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