Laminar boundary layer calculations compared with measurements by hummel

Abstract

Calculations by an integral method assuming small cross-flow, and by a finite-difference method assuming the flow to be quasi-conical, are compared with measurements made available by Hummel (Technical University, Brunswick) on a highly swept delta wing at high incidence. It is found that the small-cross-flow method gives a rough general picture of the flow but is inaccurate in the details, especially velocity profiles. For this problem the quasi-conical method is more accurate over most of the flow field and gives a much better representation of the velocity profiles.