A METHOD OF CHARACTERISTICS SOLUTION IN THREE INDEPENDENT VARIABLES

摘要

An improved method for the solution of hyperbolic partial differential equations in three independent variables is presented, with application to supersonic steady , flow of an in viscid ideal gas. A finite difference method of characteristics is used. New approaches which improve accuracy and efficiency in a three dimensional numerical solution are discussed for solving the shock singularities, for control¬ling finite difference meshes in three dimensional space so that stability conditions are satisfied, and for interpolation.