Accession Number : ADA014729

Title :   Two-Dimensional Turbulent Boundary Layer Separation on a Flat Plate with Ramp at Freestream Mach Numbers of 3.7 and 6.3 in Supersonic and Hypersonic Flow.

Descriptive Note : Final rept. 1 Jun 72-31 May 74,


Personal Author(s) : Zakkay,Victor ; Paolo,Nicola

Report Date : JUN 1975

Pagination or Media Count : 52

Abstract : This investigation describes surface pressure distribution, heat transfer, and turbulent flow separation and reattachment on a flat plate with variable ramp angle at Mach numbers averaging 3.66 and 6.30. The freestream Reynold's number varied from 3.33 to 8.34 million per foot for the former case and from 5.243 million to 14.6 million per foot for the latter case. Ramp angle was varied from 0 to 35 degrees for these experiments. Stagnation temperatures averaged 849 degrees Rankine, with wall temperature assumed constant at 535 degrees Rankine for all tests. The knowledge of effective wedge angles and freestream conditions makes it possible to determine shocks so that conditions can be evaluated at all positions on the model.

Descriptors :   *Flow separation, *Turbulent boundary layer, *Supersonic characteristics, Shock waves, Pressure distribution, Flat plate models, Two dimensional flow, Surface properties, Heat transfer, Attachment, Wedges, Angles, Reynolds number

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE