scholarly journals Base Pressure Control using Micro-jets in Supersonic Flow Regimes

Author(s):  
Vigneshvaran Sethuraman ◽  
Sher Afghan Khan
Author(s):  
K. Vijayaraja ◽  
C. Senthilkumar ◽  
S. Elangovan ◽  
E. Rathakrishnan

1968 ◽  
Vol 19 (4) ◽  
pp. 368-374 ◽  
Author(s):  
Walter R. Sieling

SummaryThe effects of sting diameter and cylindrical protuberance length on the base pressure of an axisymmetric body in a turbulent supersonic flow are experimentally determined. It is found that the change in base pressure due to the presence of the sting is greater than 4 per cent when the ratio of sting diameter to base diameter is 0·150 or greater. When the ratio of cylindrical protuberance length to base diameter is greater than 1·3 there is no apparent change in base pressure with a change in length. However, when this ratio is less than 1·3, the base pressure varies greatly with length.


2014 ◽  
Vol 64 (6) ◽  
pp. 509-516
Author(s):  
Amitesh Kumar ◽  
◽  
H.S. Panda ◽  
T.K. Biswal ◽  
R. Appavuraj ◽  
...  

2021 ◽  
Author(s):  
Sebastian Föllner ◽  
Dieter Brillert ◽  
FriedrichKarl Benra

1981 ◽  
Vol 110 ◽  
pp. 273-292 ◽  
Author(s):  
F. Motallebi ◽  
J. F. Norbury

Experiments have been carried out to investigate the phenomenon of vortex shedding from the blunt trailing edge of an aerodynamic body in transonic and supersonic flow. The effect of a discharge of bleed air from a slot in the trailing edge has been included and the relationship between the vortex formation and base pressure has been considered.In transonic flow a small amount of bleed air was found to produce a rearward shift in the point of origin of the vortices with a consequent substantial increase in base pressure. The effect was less marked in supersonic flow. At higher rates of bleed two different regimes of vortex shedding were identified and increase in bleed rate caused a reduction in base pressure. For bleed rates giving near-maximum base pressure no vortex shedding occurred.


1995 ◽  
Vol 32 (1) ◽  
pp. 8-23 ◽  
Author(s):  
J. Parker Lamb ◽  
William L. Oberkampf

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