Studies of the structure of attached and separated regions of viscous/inviscid interaction and the effects of combined surface roughness and blowing in high-Reynolds-number hypersonic flows. Final report, 1 August 1985-1 June 1988
The first of these 2 studies examined the detailed structure of the hypersonic boundary layer over a large cone/flare configuration. Emphasis was on development and use of instrumentation with which to obtain flow-field measurements of the mean and fluctuating properties of the attached and separated shear layers. Development and use of holographic interferometry and electron-beam techniques in the high Mach number and Reynolds number environment developed in the shock tunnel are described. In the second study, detailed measurements of heat transfer, pressure, and skin friction were made on a unique 'blowing and roughness' model constructed to simulate the aerothermal phenomena associated with a rough ablating maneuverable reentry vehicle. In this study emphasis was placed on development and use of unique heat transfer and skin-friction instrumentation to obtain measurements of the combined effects of blowing and roughness and to understand how such effects influence boundary-layer separation in regions of shock wave/boundary layer interaction. Each focused around providing information with which to construct and evaluate the modeling required in time-averaged Navier-Stokes equations to predict the structure of compressible hypersonic boundary layers in regions of strong pressure gradient, shock-wave/boundary-layer interaction and flow separation over smooth, rough, and ablating surfaces.
- Research Organization:
- Calspan UB Research Center, Buffalo, NY (USA)
- OSTI ID:
- 5990699
- Report Number(s):
- AD-A-204364/4/XAB; CUBRC-88682
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420400* -- Engineering-- Heat Transfer & Fluid Flow
ABLATION
BEAMS
BOUNDARY LAYERS
COMPRESSIBLE FLOW
DIFFERENTIAL EQUATIONS
DOCUMENT TYPES
ELECTRON BEAMS
ENERGY TRANSFER
EQUATIONS
FLUID FLOW
HEAT TRANSFER
HOLOGRAPHY
HYPERSONIC FLOW
IDEAL FLOW
INTERFEROMETRY
LAYERS
LEPTON BEAMS
MACH NUMBER
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
NAVIER-STOKES EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE BEAMS
PRESSURE GRADIENTS
PRESSURE MEASUREMENT
PROGRESS REPORT
REYNOLDS NUMBER
ROUGHNESS
SHOCK WAVES
SURFACE PROPERTIES
VELOCITY
VISCOUS FLOW