Vortex suppression for an eductor

Details Vortex suppression for an eductor Vortex suppression for an eductor

1991-06-13

1996-05-21

Williams, Hezron E.

Measuring and testing

Sampler, sample handling, etc.

Flow divider, deflector, or interceptor

7386341, 181215, 181220, G01N 120

Patent

active

055178650

ABSTRACT:
A vortex suppressing flow eductor apparatus having a vortex filament producing flow eductor is provided with corresponding vortex destroying plates positioned and extending sufficiently downstream from a point within educted flow and deep enough into the vortex filament so as to essentially destroy the vortex filament. A particular embodiment provides a freestream sensor scoop, for use in an aircraft gas turbine engine inlet, having an eductor diffusing channel and a fairing surrounding a forward portion of the diffusing channel. A sensor supporting mast is provided for helping to measure freestream air characteristics. Vortex destroying plates are provided for suppressing vortex filaments generated by the channel, fairing, and mast.

REFERENCES:
patent: 3613827 (1971-10-01), Labussiere
patent: 3910375 (1975-10-01), Hache et al.
patent: 4298089 (1981-11-01), Birch et al.
patent: 4436481 (1984-03-01), Linder
patent: 4439104 (1984-03-01), Edmonds
patent: 4531356 (1985-07-01), Linder
patent: 4644806 (1987-02-01), Flagg et al.
"A Study of Vortex Cancellation", by Allan Schaffer Journal Of The Aero Space Sciences, vol. 27, Mar., 1960, No. 3, Published by Institute Of The Aeronautical Sciences, Inc.

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