THREE-DIMENSIONAL BOUNDARY LAYER FLOW ON ROUGHNESS STRIP OF FINITE WIDTH
Described are the results of an experimental study of a well-developed, turbulent boundary layer on a smooth, flat surface encountering an area of much rougher surface. The roughened area is a strip with its length extending in the direction of the mean flow but of finite width in the surface direction normal to the flow. The resulting three-dimensional flow differs significantly from previously studied cases involving step changes in roughness of infinite extent in the direction normal to the flow. Extensive experiments were carried out in a wind tunnel having a length of nearly 100 ft (30.5 m) with a boundary layer thickness of the order of 18-20 in. (0.5 m). Pitot tube and hot-wire anemometer measurements were made of mean velocity and Reynolds stress quantities in great detail throughout the flow field.
- Project Themis Tech Report.
Colorado State University, Fort CollinsFort Collins, CO United States 80523
- Edling, W H
- Cermak, J E
- Publication Date: 1974-4
- Features: References;
- Pagination: 245 p.
- TRT Terms: Boundary layer; Reynolds stress; Roughness; Turbulence; Turbulent boundary layer; Velocity
- Old TRIS Terms: Reynolds stresses; Velocity profiles
- Subject Areas: Design; Marine Transportation;
- Accession Number: 00130867
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: No. 27
- Files: TRIS
- Created Date: Apr 7 1976 12:00AM