BEHAVIOR OF TURBULENCE IN THE NEAR WAKE OF A THIN FLAT-PLATE AT LOW REYNOLDS-NUMBERS

被引：11
|
作者：
HAYAKAWA, M
IIDA, S
机构：
[1] Department of Mechanical Engineering II, Hokkaido University, N13 W8
来源：
PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1992年 / 4卷 / 10期
关键词：
D O I：
10.1063/1.858468
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Conventional hot-wire measurements have been made in the turbulent developing wake of a thin flat plate. The data obtained are primarily concerned with turbulence characteristics in the near-wake region. Turbulence properties in the inner wake first increase up to a streamwise distance of 200-300 times the initial wall-layer length scale, followed by a gradual decay farther downstream. The mechanism of this overshoot phenomenon is inferred from space-time correlation data. Quasiperiodic motion similar to that in the far wake is observed as early as near the end of the near wake.
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页码：2282 / 2291
页数：10
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