Author: John B. PetersonPublisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 100
Book Description
Boundary layer velocity profiles downstream of three dimensional transition trips on flat plates at Mach 3 and 4.
Boundary-layer Velocity Profiles Downstream of Three-dimensional Transition Trips on a Flat Plate at Mach 3 and 4
Author: John B. PetersonPublisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 100
Book Description
Boundary layer velocity profiles downstream of three dimensional transition trips on flat plates at Mach 3 and 4.
NASA Technical Note
Author: Scientific and Technical Aerospace Reports
Author: Boundary-layer Transition Study of Several Pointed Bodies of Revolution at Supersonic Speeds
Author: William A. CasselsPublisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 76
Book Description
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.
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1730
Book Description
NASA Technical Memorandum
Author: Monthly Catalog of United States Government Publications, Cumulative Index
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : United States
Languages : en
Pages : 1504
Book Description
Monthly Catalog of United States Government Publications
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1464
Book Description
NASA Technical Paper
Author: Pitot-probe Displacement in a Supersonic Turbulent Boundary Layer
Author: Jerry M. AllenPublisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 36
Book Description
Eight circular pitot probes ranging in size from 2 to 70 percent of the boundary-layer thickness were tested to provide experimental probe displacement results in a two-dimensional turbulent boundary layer at a nominal free-stream Mach number of 2 and unit Reynolds number of 8 million per meter. The displacement obtained in the study was larger than that reported by previous investigators in either an incompressible turbulent boundary layer or a supersonic laminar boundary layer. The large probes indicated distorted Mach number profiles, probably due to separation. When the probes were small enough to cause no appreciable distortion, the displacement was constant over most of the boundary layer. The displacement in the near-wall region decreased to negative displacement in some cases. This near-wall region was found to extend to about one probe diameter from the test surface.