Calculation of the displacement effect in two-dimensional, subsonic attached flow around aerofoils; examples of calculations using measured displacement thickness

摘要

Coaparleons between results of the present calculations and expert-mental values of lift confirm the earlier finding of Pronto (1953) and Pence (1934) that the classical dlsplaoeaent concept tends to under-estimate the total relooked lift loss, especially in cases with large trailing edge angle. This illustrates the need for the possibility to take sore appropriate care of the singular behavior of the flow near the trailing edge.