Effects of Cone Angel, Mach Number, and Nose Blunting on Transition at Supersonic Speeds PDF Download
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Author: K. R. Czarnecki
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 36
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Book Description
Author: K. R. Czarnecki
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 36
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Book Description
Author: K. R. Czarnecki
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
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Book Description
Author: K. R. Czarnecki
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 31
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Book Description
Author: K. R. Czarnecki
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 17
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Book Description
An investigation has been made to determine the transition characteristics of a group of smooth, sharp-nosed cones varying from 10 degrees to sixty degrees in included apex angle over a Mach number range from 1.61 to 2.20 and a range of Reynolds number per foot from about 1.5 million to 8 million. Increasing the cone angle is shown to decrease slightly the transition Reynolds number, whereas the effects of changes of Mach number and unit Reynolds number are negligible. When transition occurred within 15 to 20 percent of the model length from the base there was a dropoff in transition Reynolds number.
Author: William J. Monta
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 38
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 460
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Book Description
Author: E. R. Van Driest
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 108
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Book Description
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: P. Calvin Stainback
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 82
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Author: Herman S. Fletcher
Publisher:
ISBN:
Category :
Languages : en
Pages : 60
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Author: R. E. Wilson
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 364
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