NUMERICAL INVESTIGATIONS ON THE SOLUTION OF THE NON-LINEAR EQUATION OF SUPERSONIC FLOW BY FINITE DIFFERENCE METHODS (PART I)

摘要

This report deals with the method of characteristics in supersonic flow by the numerical way of the mean-value apprize- matron in several variations. Information are given on the type of convergence and on the truncation error in the local case and in the large, when solving the difference equations by iteration, Pure mean-value procedures are described which also converge on the axis of flows with cylindrical symmetry. Furthermore, there is a discussion how to find the "true solution" by extrapolation.