Abstract
Experimental results are presented that show the existence of organized structures in a compressible, turbulent boundary layer. Results were obtained using arrays of hot wires and wall pressure transducers in a Mach 3 zero pressure gradient boundary layer. The inferred angle from correlations between two hot wires, and between a hot wire and a wall pressure transducer, indicate that the average structure is inclined at approxinately 45DEGREES for a large part of the boundary layers. Measurements of the instantaneous angle show a wide distribution of structure angles, and the general behaviour of the large scale structures is consistent with the hairpin loop model of wall turbulence.
Original language | English (US) |
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Journal | J. FLUID MECH. |
Volume | 182 , Sep. 1987, p.85-109. |
State | Published - 1987 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering