Near-wake turbulence properties around a circular cylinder at high reynolds number

被引：40
|
作者：
Djeridi, H
Braza, M
Perrin, R
Harran, G
Cid, E
Cazin, S
机构：
[1] Ecole Navale, Inst Rech, F-29240 Lanveoc Poulmic, Brest Naval, France
[2] Inst Mecan Fluides Toulouse, Unite Mixte CNRS INPT 5502, F-31400 Toulouse, France
来源：
FLOW TURBULENCE AND COMBUSTION | 2003年 / 71卷 / 1-4期
关键词：
coherent structures; incompressible flow; near-wake; turbulence; unsteadiness;
D O I：
10.1023/B:APPL.0000014930.49408.53
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The present study investigates the turbulent properties of the flow around a circular cylinder in the near-wake and in the near-wall upstream region at the Reynolds number 140,000. A detailed cartography of the mean and turbulent velocity fields using a moderate blockage and aspect ratio is provided in order to use the present results for direct comparisons with realisable 3D Navier-Stokes computations. The flow structure is analysed by means of two experiments using respectively the LDV and the PIV techniques, both providing a refined grid of measurement points. The dynamics of the separation region, the growth and decay of turbulence in the near wake, as well as the spatial growth of the organised mode are analysed.
引用
收藏
页码：19 / 34
页数：16
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