Flow control device to eliminate cavity resonance

Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

244209, 244 53B, 137 151, B64C 2106

Patent

active

060505273

ABSTRACT:
A flow control device and method for eliminating flow-induced cavity resonance within a closed or nearly closed end flow passage (20) having an inlet opening (30) defined between an upstream inlet edge (32) and a downstream inlet edge (34). The passage accepts exterior fluid flow (38) therein via the opening (30). The flow control device includes a stationary inlet guide vane (44) having a leading edge (46), a trailing edge (48), and a number of support members (50) to connect the vane to the inlet. The vane (44) is positioned such that the vane leading edge intercepts the exterior fluid flow shear layer, and the vane trailing edge extends into the passage at the inlet. In a preferred embodiment, the inlet guide vane is located approximately midway between the upstream and downstream inlet edges. The inlet guide vane is cross-sectionally shaped as a cambered airfoil. Flow-induced cavity resonance is reduced or eliminated in the closed or nearly closed end passage through the interception of the free shear layer passing over the inlet opening with an inlet guide vane flow control device.

REFERENCES:
patent: 2791387 (1957-05-01), Weinberg
patent: 3740006 (1973-06-01), Maher
patent: 3934846 (1976-01-01), Maurer
patent: 4132240 (1979-01-01), Frantz
patent: 4174083 (1979-11-01), Mohn
patent: 4203566 (1980-05-01), Lord
patent: 4418879 (1983-12-01), Vanderleest
patent: 4422524 (1983-12-01), Osborn
patent: 4696442 (1987-09-01), Mazzitelli
patent: 4703904 (1987-11-01), Haslund
patent: 4844382 (1989-07-01), Raisbeck
patent: 5291672 (1994-03-01), Brown
patent: 5884843 (1999-03-01), Lidstone et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Flow control device to eliminate cavity resonance does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flow control device to eliminate cavity resonance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow control device to eliminate cavity resonance will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2330370

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.