COMBINED DYE-STREAK AND HYDROGEN-BUBBLE VISUAL OBSERVATIONS OF A TURBULENT BOUNDARY LAYER
The turbulent boundary layer over a flat plate was observed visually using two dye injectors and a normal bubble wire. One dye injector was a standard wall slot; the other one was a small Pitot probe which could be placed anywhere in the flow. The purpose of these experiments was to improve understanding of the relationships between the bursting of low-speed streaks near the wall and the flow field farther away from the wall. On the basis of these observations, it seems that each lift-up is associated with a disturbance which originates in the logarithmic region and is characterized by a mean motion towards the wall.
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Corporate Authors:
Cambridge University Press
200 Euston Road
London NW1, England -
Authors:
- OFFEN, G R
- Kline, S J
- Publication Date: 1974-1-23
Media Info
- Features: References;
- Pagination: p. 223-239
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Serial:
- Journal of Fluid Mechanics
- Volume: 62
- Issue Number: Pt2
- Publisher: Cambridge University Press
Subject/Index Terms
- TRT Terms: Boundary layer; Flow visualization; Shear stress; Turbulence; Turbulent boundary layer; Walls
- Old TRIS Terms: Hydrogen bubble technique; Wall shear stress
- Subject Areas: Design; Marine Transportation;
Filing Info
- Accession Number: 00057628
- Record Type: Publication
- Source Agency: Engineering Index
- Files: TRIS
- Created Date: Oct 22 1974 12:00AM