Factors Affecting Transition At Supersonic Speeds
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Author | : K. R. Czarnecki |
Publisher | : |
Total Pages | : 22 |
Release | : 1953 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
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This paper surveys the available material and summarizes what is known to date about boundary-layer transition at supersonic speeds. Variables studied include Mach number, Reynolds number, pressure gradients, heat transfer, surface roughness, and angle of attack. The discussion is limited to bodies of revolution because similar reliable data for wings is lacking.
Author | : E. R. Van Driest |
Publisher | : |
Total Pages | : 108 |
Release | : 1961 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Boundary Layer Transition at Supersonic Speeds Book in PDF, Epub and Kindle
Experiments carried out in the 12-inch supersonic wind tunnel to investigate the effect of three dimensional roughness elements (spheres) on boundary-layer transition on a 10-degree (apex angle) cone without heat transfer are described. The local Mach number for these tests was 2.71. The data show clearly that the minimum (effective) size of trip required to bring transition to its lowest Reynolds number varies power of the distance from the apex of the cone to the trip. Use of available data at other Mach numbers indicates that the Mach number influence for effective tripping is taken into account by a simple expression. Some remarks concerning the roughness variation for transition on a blunt body are made. Finally, a general criterion is introduced which gives insight to the transition phenomenon and anticipates effects of external and internal disturbances, Mach number transfer.
Author | : Michel R. |
Publisher | : |
Total Pages | : |
Release | : 1964 |
Genre | : |
ISBN | : |
Download Factors affecting boundary layer transition at hypersonic speeds by R. Michel Book in PDF, Epub and Kindle
Author | : Charles H. McLellan |
Publisher | : |
Total Pages | : 22 |
Release | : 1956 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Factors Affecting the Maximum Lift-drag Ratio at High Supersonic Speeds Book in PDF, Epub and Kindle
A study of the factors affecting the maximum lift-drag ratio has been conducted in an effort to determine how to obtain high aerodynamic values at high supersonic Mach numbers.
Author | : William A. Cassels |
Publisher | : |
Total Pages | : 76 |
Release | : 1970 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Boundary-layer Transition Study of Several Pointed Bodies of Revolution at Supersonic Speeds Book in PDF, Epub and Kindle
Boundary-layer transition by the sublimation and impact-pressure techniques and force tests have been performed on three Haack-Adams bodies of revolution of fineness ratios 7, 10, and 13 at zero angle of attack for free-stream Mach numbers of 2.00, 2.75, and 4.63 and a range of Reynolds numbers based on model length of 6 to 15 X 10(to the 6 power) with and without a roughness strip. The grit method of inducing turbulence was found to provide for a nearly complete turbulent flow over the models at the lower Mach numbers and higher Reynolds numbers considered in this study while the amount of trip drag was less than 8 percent of the model drag with transition fixed. A method of interpreting sublimation data was discussed and used and the results compared well with the impact-pressure results.
Author | : R. Michel |
Publisher | : |
Total Pages | : |
Release | : 1964 |
Genre | : |
ISBN | : |
Download Factors Affecting Boundary Layer Transition at Hypersonic Speeds Book in PDF, Epub and Kindle
Author | : Albert L. Braslow |
Publisher | : |
Total Pages | : 36 |
Release | : 1966 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download A Review of Factors Affecting Boundary-layer Transition Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 20 |
Release | : 1953 |
Genre | : Aerodynamics |
ISBN | : |
Download NACA Research Memorandum Book in PDF, Epub and Kindle
Author | : United States. National Advisory Committee for Aeronautics |
Publisher | : |
Total Pages | : 378 |
Release | : 1958 |
Genre | : Aeronautics |
ISBN | : |
Download Technical Note - National Advisory Committee for Aeronautics Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 628 |
Release | : 1970 |
Genre | : |
ISBN | : |
Download NASA Technical Note Book in PDF, Epub and Kindle