Measurements of velocity distributions in the laminar wake of a flat plate
1978; Cambridge University Press; Volume: 84; Issue: 4 Linguagem: Inglês
10.1017/s0022112078000439
ISSN1469-7645
AutoresMichio Nishioka, Tosio Miyagi,
Tópico(s)Aerodynamics and Fluid Dynamics Research
ResumoThe two-dimensional wake of a thin flat plate parallel to the stream was maintained laminar and steady at Reynolds numbers up to 3000 in a low-turbulence wind tunnel. Velocity distributions in the wake were measured in detail for Reynolds numbers from 20 to 3000. One of the interesting results is the appearance of a velocity overshoot, namely that the velocity in the outer part of the shear layer exceeds that of the uniform flow in the vicinity of the trailing edge. Comparisons between the experimental results and Goldstein's theoretical predictions show good agreement in the far wake irrespective of the Reynolds number, but not in the near wake even at higher Reynolds numbers, in particular immediately behind the trailing edge.
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