Investigation of a threedimensional turbulent boundary layer with separation in incompressible flow
Abstract
Development of a turbulent boundary layer was studied on the floor of an asymmetric diffuser producing lateral pressure gradients, and longitudinal pressure gradients large enough to cause separation. Maximum flow velocity was 29 m per sec with momentum thickness Reynolds number of 20,000 at separation. Pressure distributions, velocity profiles, viscous layer parameters and flow deflections are discussed. A separation front is defined and the flow beyond it is described. The separation occurs further downstream than it does for a two dimensional case with similar streamwise gradients. The results were examined in relation to Colesa Wake hypothesis and a degree of distortion found to be present.
 Publication:

B.S. Thesis Bristol Univ. (England). Dept. of Aeronautical Engineering
 Pub Date:
 June 1980
 Bibcode:
 1980bue..rept.....A
 Keywords:

 Separated Flow;
 Three Dimensional Flow;
 Turbulent Boundary Layer;
 Wind Tunnel Tests;
 Flow Visualization;
 Mathematical Models;
 Pressure Distribution;
 Vaneless Diffusers;
 Velocity Distribution;
 Fluid Mechanics and Heat Transfer