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Vortical structures over rectangular cavities at low speed

delete2004-12-14
delete74
PRE
AI
G
Graham Ashcroft
X
Xin Zhang
DOI：10.1063/1.1833412delete
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Abstract

Abstract

En 中文
Experiments have been performed to acquire qualitative and quantitative flow-field data for an open cavity flow using the particle image velocimetry technique. The study focuses on the time-mean and instantaneous development of the turbulent flow structures in the cavity shear layer. The effects of geometry (length-to-depth ratio) and flow speed on these structures are investigated. The shear layers are found to be characterized by coherent vortical structures whose size and rate of growth vary with geometry. The smaller scales of the flow are investigated using a large-eddy decomposition method. Results show these stochastic structures to predominate primarily in the shear layer and aft wall regions. (C) 2005 American Institute of Physics.
Keywords:
FINITE-DIFFERENCE SCHEMES
FLOW
OSCILLATIONS
RESOLUTION
LAYER

Journal

Physics of Fluids cover
Physics of Fluids
IF:
4.3
Papers:
2.9W
Citations:
8.0W

Organization

No organization information available