This paper is concerned with the numerical simulation of transonic inviscid flows. The unsteady Euler equations are written in characteristic-type variables, discretized in time, and solved by means of an implicit technique or alternating direction implicit technique, for one- and two-dimensional flows, respectively, so that only block-tridiagonal systems have to be solved at each time level. The present method has been successfully applied to one-dimensional transoic internal flows and two-dimensional transonic external flows within the framework of thin airfoil theory, and can be generalized to transonic two- and three-dimensional flows for arbitrary geometries. In all computed cases the present technique has proved itself reliable and about one order of magnitude more efficient than its well-known explicit counterpart.
An implicit lambda scheme
Ein implizites lambda-Schema
AIAA Journal ; 21 , 10 ; 1391-1399
1983
9 Seiten, 9 Bilder, 32 Quellen
Aufsatz (Zeitschrift)
Englisch
AIAA | 1983
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