A Method for Calculating the Flowfield in the Tail Region of a Body of Revolution.

摘要

A method is presented for calculating a high Reynolds number flow field in the aft region of a body of revolution without appendages where the boundary layer and outer inviscid flow strongly interact. The method is based on a correction of the displacement body idea to effectively represent streamline curvature effects by means of a simple pressure mapping. The problem is solved numerically on a digital computer by iterating for the unknown displacement body surface. Typically, from 6 to 8 iterations are required for convergence. Available computation codes are used for the boundary layer flow and outer inviscid flow while a simple integral model is used for the wake. Comparisons of computed results are made with experiment and other numerical solutions for three bodies. (Author)