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Your search keyword '"P. J. Reddy"' showing total 8 results
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5. Dynamic force balances for short-duration hypersonic testing facilities

Author

Kiran Suryavamshi, David J. Mee, K. P. J. Reddy, and Niranjan Sahoo

Subjects
Fluid Flow and Transfer Processes, Physics, Hypersonic speed, Drag coefficient, Expansion tunnel, Computational Mechanics, Aerospace Engineering(Formerly Aeronautical Engineering), General Physics and Astronomy, Mechanics, Aerodynamics, Physics::Fluid Dynamics, Aerodynamic force, Mechanics of Materials, Drag, Aerodynamic drag, Drag divergence Mach number
Abstract

Two force balance techniques for use in hypersonic impulse facilities are compared by measuring the drag force on a $30^o$ semi-apex-angle blunt cone model in a hypersonic shock tunnel at a free stream Mach number of 5.75. An accelerometer-based balance and a stress-wave force balance were tested simultaneously on the same model to measure the drag force. It was found that drag force measurements could be made using both techniques in a flow with a 450-{\mu}s test period. The measured drag forces compared well with the theoretical values estimated using Newtonian theory.

Published
2005

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