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.

• 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
• 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