Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent
1997-11-21
1999-10-26
Carone, Michael J.
Aeronautics and astronautics
Aircraft sustentation
Sustaining airfoils
244130, B64C 2110
Patent
active
059713267
ABSTRACT:
A surface (2) is intended for a wall which is subject to a turbulent flow with a main direction of flow. The surface (2) has projecting ribs (6) oriented in the main direction of flow and spaced laterally to the main direction of flow. The height (8) of the ribs is in the range of 45% to 60% of the lateral distance between the ribs. The ribs (6) are wedge-shaped with a wedge angle (7) in the range of 20.degree. to 50.degree..
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Bechert, D.W. et al., "Experiments on drag reducing surfaces and their optimization with an adjustable geometry," pp. 59-87, Journal of Fluid Mechanics, vol. 338, May 10, 1997.
Bruse, M. et al., "Experiments with conventional and with novel adjustable drag-reducing surfaces," International Conference on Near-Wall Turbulent Flows, Tempe, AZ, Mar. 1993, pp. 1-20.
Carone Michael J.
Deutsch Forschungsanstalt fur Luft-und Raumfahrt e.V.
Montgomery Christopher K.
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