Abstract
This paper contains a general description of the method of complex extension and its applications to a variety of two-dimensional transonic design problems. The geometry of the complex characteristics in the hodograph plane is explored and the selection of initial paths for analytic continuation into the supersonic zone is illustrated. The paper contains a section which explains how to obtain the solution near infinity for the various design problems and another about choosing initial data. An example of a compressor blade that was designed by this method is used to illustrate the practical significance of this method.
The work presented in this paper is supported by the U. S. Atomic Energy Commission, Contract AT(11-1)-3077 at the AEC Computing and Applied Mathematics Center, Courant Institute of Mathematical Sciences, New York University.
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References
F. Bauer, P. Garabedian, A. Jameson, and D. Korn, Handbook of Supercritical Wing Sections, to appear.
F. Bauer, P. Garabedian, and D. Korn, Supercritical Wing Sections, Springer, Berlin, 1972.
J. J. Kacprzynski, L. H. Ohman, P. R. Garabedian and D. G. Korn, Analysis of the flow past a shock-less lifting airfoil in design and off-design conditions, N.R.C. of Canada Aeronautical Report LR-554, Ottawa, 1971.
D. G. Korn, Computation of Shock-Free Transonic Flows for Airfoil Design, Report NYU-NYO-125 (1969).
E. V. Swenson, Geometry of the complex characteristics in transonic flow, Comm. Pure Appl. Math., 15, (1968), 175–185.
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© 1974 Springer-Verlag
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Korn, D.G. (1974). Transonic design in two dimensions. In: Colton, D.L., Gilbert, R.P. (eds) Constructive and Computational Methods for Differential and Integral Equations. Lecture Notes in Mathematics, vol 430. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0066274
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DOI: https://doi.org/10.1007/BFb0066274
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-07021-4
Online ISBN: 978-3-540-37302-5
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