vortex breakdown

vortex breakdown

[‚vȯr‚teks ′brāk‚dau̇n]
(fluid mechanics)
An abrupt change in the structure of the core of a swirling flow.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
But for the current study, the complex vortex pattern and its interaction with the boundary layer should be simulated accurately to find the possible vortex breakdown or boundary layer separations inside the duct; therefore, using a less dissipative scheme like the second-order upwind is a requirement.
The passage between ridge and inlet should let the vortex pass away safely, and any vortex breakdown should happen after this passage.
There are four mechanisms that may result in flame flashback [7, 9-11]; upstream flame propagation of coherent structures and boundary layer flame propagation in particular are symptomatic of combustion induced vortex breakdown.
This cavitation results in vortex breakdown near the orifice and generation of very fine bubbles.
The phenomena are very complex as many physical, time and chemical scales are involved, therefore turbulent combustion instabilities multiscale 4D problems (space and time), like vortex breakdown and vortex precessing core [3, 4], appear.
Downward moving wind and temperature anomalies associated with rapid vortex breakdown appear to influence the Jet Streams and project strongly onto the AO.