flow separation


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flow separation

[′flō ‚sep·ə‚rā·shən]
(fluid mechanics)
References in periodicals archive ?
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.
The analysis of the aerodynamic behavior of such a simplified car model relates primarily to the flow separation at the rear slant and the subsequent wake region.
It is best to keep the tip clearance as small as possible in order to minimize the tip vortex effect (which may lead to undesirable flow separation and extra drag)
The research proposed here will address this shortcoming and develop and utilize computational methods that are able to predict, understand and control the sensitive interplay between laminar-turbulent transition and flow separation in boundary layers on wings and other aerodynamic bodies.
Aft of the berm there is airflow separation creating a sort of rotor or vortex of disturbed air in the area of flow separation.
The technique of DFDS design offered earlier allows calculating its constructive and production characteristics, but does not provide the determination of flow separation factor value, that is optimum from the point of view of cleaning efficiency.
When flow separation occurs, it will have a negative influence on the efficiency of capturing wind power by wind turbines [1-4], so it gradually becomes a research hotspot in study of wind turbine aerodynamics to improve wind machine pneumatic efficiency by controlling the blade root flow separation.
In order to eliminate the inlet incidence angle and tail flow separation of blade, the OGV setting angle should be regulated according to axial-flow pump operating conditions.
Too high a shear rate can result in flow separation of lower-molecular weight materials, with associated surface flow defects, more difficult venting, and possibly weaker weld lines.
This helped reduce the amount of flow separation in the intake by 50%; it reduced power consumption by approximately 2.