WAVERIDER DESIGN FOR GENERALIZED SHOCK GEOMETRIES

A new method for the design of inviscid waverider configurations with more general shock geometries than previously possible is presented. A n arbitrary three-dimensional shock shape is specified as input, and a new inverse method, utilizing a cross-stream marching scheme for solv ing the Euler equations, is used to generate the postshock flowfield. Unlike most previous studies, this approach allows for the use of nona xisymmetric shock topologies with nonconstant shock strengths. The pro blem's ill-posedness is suppressed by reformulating the problem in the proper curvilinear coordinate system. The inverse marching approach i s briefly summarized, and detail of the waverider design procedure are given. Comparisons of individual waveriders and their flowfields gene rated by the new algorithm in a few seconds on a workstation with flow fields computed by a direct Euler solver, requiring on the order of an hour of Cray 2 CPU time, demonstrate the accuracy and efficiency of t he new approach.