flow separation


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flow separation

[′flō ‚sep·ə‚rā·shən]
(fluid mechanics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The curious part of using airspeed to measure how close we are to flow separation is that it's directly contradicted by even minimal understanding of angle of attack.
It is observed that LES model captures flow separation near the ceiling accurately while RANS solution shows the jet remaining attached to ceiling.
The pressure-tapping points are kept at less spacing near the wall boundaries to tap the sharp pressure variation due to flow separation and at larger spacing in the middle of the surfaces.
Flow separation is formed in the boundary layer--a vortex is formed at the leading edges of the isolated roughness, and five more long narrow vortices are formed between two roughnesses of the distributed roughness.
Although there is an effort [22] to reduce the subjectivity associated with traditional graphical methods of base flow separation in hydrology, their application is restricted to well-defined, single-peaked, and isolated hydrographs [23].
A very important phenomenon is that there will be flow separation vortexes in the poststenotic regions of severe stenosis cases, which is validated by the present CFD results.
For example, a typical asymmetrical confluence, the most common style of confluence found in the Yangtze River, can be divided into six different hydrological zones based on flow dynamics: flow deflection, flow stagnation, flow separation, maximum velocity, shear layer, and the mainstream (Best, 1987; Wang, 2007).
He worked on the development of the principles of flow separation reductions.
[7] reported that the flow separation behind cylinder is found to be symmetric about the centre line for all Re number, and the wake region increases with increasing Re number along the stream-wise as well as transversal directions with Reynolds number.