A method for calculating inviscid, supercritical flowfields about axisymmetric inlet cowls with center bodies is presented. A finite-difference approximation to the full potential equation is solved under a general coordinate transformation, using a numerical evaluation of the transformation matrix at each mesh point. For the present problem, a boundary-conforming coordinate system was generated by a sequence of conformal and shearing transformations, but this transformation is not essential to the method. Both the quasi-conservative and nonconservative forms of Jameson's rotated differencing scheme are used, and the difference equations are solved by relaxation. Numerical results for pressure distributions generally agree well with experiment. (Kursetz)
Calculation of transonic inlet flowfields using generalized coordinates
Berechnung von transsonischen Einstroemfeldern unter Anwendung allgemeiner Koordinatensysteme
AIAA-Papers ; Jan ; 1-10
1979
10 Seiten, 11 Bilder, 14 Quellen
Aufsatz (Konferenz)
Englisch
Accelerated iterative calculation of transonic nacelle flowfields
Tema Archiv | 1976
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