Transformation of a Polynomial for a Contraction Wall Profile

[+] Author and Article Information
D. Brassard, M. Ferchichi

Department of Mechanical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada

J. Fluids Eng 127(1), 183-185 (Mar 22, 2005) (3 pages) doi:10.1115/1.1852492 History: Received January 13, 2004; Revised August 12, 2004; Online March 22, 2005

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Copyright © 2005 by ASME
Topics: Polynomials
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Mehta,  R. D., and Bradshaw,  P., 1979, “Design Rules for Small Low Speed Wind Tunnels,” Aeronaut. J., 73, pp. 443–449.
Bell,  J. H., and Mehta,  R. D., 1989, “Boundary-Layer Predictions for Small Low Speed Contractions,” AIAA J., 27, pp. 372–374.
Bell, J. H., and Mehta, R. D., 1988, “Contraction Design for Small Low-Speed Wind Tunnels,” NASA CR 177488, Contract NAS2-NCC-2-294.


Grahic Jump Location
Geometrical parameters of contraction profile
Grahic Jump Location
Transformation with constant f(ξ); (a) The transformed profiles (b) corresponding first derivatives (c) corresponding second derivatives. – Untransformed; [[dot_dash_line]]  f(ξ)=0.3; [[dashed_line]] f(ξ)=0.5.
Grahic Jump Location
Transformation with non-constant f(ξ); (a) The transformed profile (b) corresponding first derivatives (c) corresponding second derivatives. – Untransformed; [[dot_dash_line]] Linear f(ξ); [[dashed_line]] Quadratic f(ξ).




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