TURBULENT BOUNDARY LAYER AND FLOW RESISTANCE ON PLATES ROUGHENED BY WIRES
The flow resistance in a plate roughened by equally spaced wires at right angles to the flow direction was investigated experimentally by measuring the turbulent boundary layer developing along it. Measurements of pressure distribution around a roughness element revealed that the pressure drag accounts for a large portion of the surface resistance and remaining skin frictional part is almost equal to that of a smooth plate. Measurements were also made for plates having three-dimensional roughness. These plates were roughened by short wires in a staggered manner. In this case, the boundary layer was found to have a three-dimensional structure due to accompanying secondary currents.
- Prepared for ASME Meeting Mar 21-25,1976.
American Society of Mechanical EngineersTwo Park Avenue
New York, NY USA 10016-5990
- Furuya, Y
- MIYATA, M
- FUJITA, H
- Publication Date: 1976-3
- Features: References;
- Pagination: 11 p.
- TRT Terms: Boundary layer; Pressure; Roughness; Three dimensional flow; Turbulence; Turbulent boundary layer
- Uncontrolled Terms: Pressure distribution; Secondary flow
- Subject Areas: Design; Marine Transportation;
- Accession Number: 00138497
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: Pap N76-FE-6
- Files: TRIS
- Created Date: Sep 4 1976 12:00AM