scholarly journals Study of Effect of Mach Number on Coefficient of drag of Sounding Rocket by Computational Method

2021 ◽  
Vol 1104 (1) ◽  
pp. 012029
Author(s):  
Ashutosh Kumar ◽  
Rakesh Kumar Shukla ◽  
Kushagra S. Gusain ◽  
Aakash Sadar
Keyword(s):  
Mach Number ◽  
Computational Method ◽  
Sounding Rocket

Two New Flow Control Technologies Based on Vibration

2013 ◽  
Vol 774-776 ◽  
pp. 326-334
Author(s):  
Da Wei Li ◽  
Jin Hao Qiu ◽  
Rui Nie ◽  
Hong Li Ji
Keyword(s):  
Mach Number ◽  
Active Control ◽  
Lift Coefficient ◽  
Three Dimensional ◽  
Aerodynamic Characteristics ◽  
Computational Method ◽  
Control Effect ◽  
Active Deformation ◽  
Wing Model ◽  
Control Technologies

This paper aims at study the technology of flow active control to increase the wing lift and weaken the wing drag by using the method of fluid mechanics. There are two new active control methods proposed in this paper. In this article, the computational method is expanded to a three-dimensional wing model to verify the validity of the new active control technology. Research shows that the partial active deformation can improve the aerodynamic characteristics of airfoil by appropriate parameters optimize, moreover the effect of rotation was better. In the condition of low Mach number and rotational control, the lift coefficient can be increased 11%, the drag coefficient can be decreased 40%. The shock wave will move backward by control in the condition of high Mach number. The control effect of 3D model is not as good as 2D model.

Observed and Theoretical Spectra in the 10–100Å Interval

1988 ◽  
Vol 102 ◽  
pp. 259-261
Author(s):  
W.A. Brown ◽  
M.E. Bruner ◽  
L.W. Acton
Keyword(s):  
Sounding Rocket ◽  
Full Spectrum ◽  
X Ray

AbstractThe soft x-ray spectra recorded in two sounding rocket flights in 1982 and 1985 are compared with with predicted spectra. The poster presents the processed densitometer trace of the full spectrum together with the new spectrum from the 1985 experiment. This note compares the intensities of the lines with predictions.

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