Hypersonic Viscous Drag on Cones in Rarefied Flow
Author : Marvin I. Kussoy
Publisher :
Page : 20 pages
File Size : 35,94 MB
Release : 1967
Category : Aerodynamics, Supersonic
ISBN :
Author : Marvin I. Kussoy
Publisher :
Page : 20 pages
File Size : 35,94 MB
Release : 1967
Category : Aerodynamics, Supersonic
ISBN :
Author : Marvin I. Kussoy
Publisher :
Page : 6 pages
File Size : 48,9 MB
Release : 1969
Category : Aerodynamics, Hypersonic
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Author : David E. Boylan
Publisher :
Page : 40 pages
File Size : 30,28 MB
Release : 1964
Category : Aerodynamics, Hypersonic
ISBN :
Author : T. J. Rhys-Jones
Publisher :
Page : 12 pages
File Size : 43,53 MB
Release : 1987
Category :
ISBN :
This Paper describes an experimental study performed in the RAE Low Density Tunnel to determine the aerodynamic characteristics of a range of slender axisymmetric bodies in rarefied hypersonic flow. The main purpose of this study was to assess the effects of cone angle, nose bluntness and Reynolds number on the zero incidence drag of cones. In addition, some measurements of axial force, normal force and pitching moment at incidence were made. The bodies were tested at a nominal Mach number of 10 and at flow conditions which correspond to those in the transitional rarefied flow regime. These data have been compared with correlations developed to represent the change in drag coefficient in this flow regime between continuum and free molecular flow.
Author : Marvin I. Kussoy
Publisher :
Page : 36 pages
File Size : 10,42 MB
Release : 1972
Category : Aerodynamics, Hypersonic
ISBN :
Drag, heat transfer, and number flux were measured on sharp cones in the near free, molecule flow regime, and the results were compared with available Monte Carlo calculations. In general, the calculations predicted the magnitude of the data; however, the heat transfer and drag increased with increasing Knudsen number at a faster rate than predicted. Also the drag coefficients measured for the slender cones at high Knudsen number were higher than predicted for free molecule flow. These disagreements between theory and experiment could possibly be attributed to the simplicity of the surface interaction laws assumed in the theory. Reynolds analogy factors obtained from the experimental measurements agreed with free-molecule values and also with that obtained by the Monte Carlo technique.
Author : Marvin I. Kussoy
Publisher :
Page : 0 pages
File Size : 30,13 MB
Release : 1967
Category : Aerodynamics, Supersonic
ISBN :
Author : David Carl Ipsen
Publisher :
Page : 144 pages
File Size : 34,85 MB
Release : 1953
Category : Aerodynamics, Supersonic
ISBN :
Author : J. J. Smolderen
Publisher :
Page : 5 pages
File Size : 15,76 MB
Release : 1969
Category : Aerodynamics, Hypersonic
ISBN :
The drag forces experienced by a sphere and a sharp slender cone were measured under hypersonic rarefied flow conditions using a flow modulation technique. The resulting drag coefficients are in substantial agreement with those obtained by other investigators, and extend, by nearly two orders of magnitude in the case of the cone, to more rarefied conditions than previously reported.
Author :
Publisher :
Page : 48 pages
File Size : 40,7 MB
Release : 1970
Category :
ISBN :
Author : William H. Sims
Publisher :
Page : 7 pages
File Size : 42,22 MB
Release : 1969
Category : Aerodynamics, Supersonic
ISBN :
Tests on sharp and blunt cones were conducted in the Lockheed/Huntsville Low Density Facility to determine the drag coefficients in a highly rarefied flow. The Reynolds number range was 0.8 [less than or equal to] Re[subscript]w, l [less than or equal to] 20.0. Results show an overshoot of the data above the theoretical free molecule C[subscript]D value, and a family of C[subscript]D curves for the variation of bluntness ratio, 0 [less than or equal to] d/D [less than or equal to] 1.0.