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Characteristics of a trailing-edge flow with turbulent boundary-layer separation

Published online by Cambridge University Press:  20 April 2006

B. E. Thompson  and
J. H. Whitelaw
B. E. Thompson
Affiliation:
Imperial College of Science and Technology, Department of Mechanical Engineering, Fluids Section, London SW7 2BX
J. H. Whitelaw
Affiliation:
Imperial College of Science and Technology, Department of Mechanical Engineering, Fluids Section, London SW7 2BX
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Abstract

Experimental techniques, including flying-hot-wire anemometry, have been used to determine the pressure and velocity characteristics of a flow designed to simulate the trailing-edge region of an airfoil at high angle of attack. Emphasis is placed on the region of recirculating flow and on the downstream wake. It is shown that the effect of this recirculation is large even though the details of the flow within it may be unimportant. Normal stresses and cross-stream pressure gradients are important immediately upstream and downstream of the recirculating flow and are associated with strong streamline curvature. The relative importance of the terms in the transport equations for mean momentum and turbulence energy are quantified and the implications for procedures which solve potential-flow and boundary-layer equations and for alternative calculation methods are discussed.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 157 , August 1985 , pp. 305 - 326
Copyright
© 1985 Cambridge University Press

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