Flow-controlled Inflatable Fairings for Helicopter Hub Drag Reduction

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$69,904.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
W911W6-09-C-0013
Award Id:
87092
Agency Tracking Number:
A082-021-0533
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
265 Industrial Drive, Christiansburg, VA, 24073
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
003220998
Principal Investigator:
Matthew Langford
Senior Research Engineer
(540) 381-8502
mlangford@techsburg.com
Business Contact:
Tamara Murray
Business Manager
(540) 381-8502
tmurray@techsburg.com
Research Institution:
n/a
Abstract
Techsburg, Inc. proposes to perform experimental proof-of-concept testing of a flow-controlled inflatable fairing concept for helicopter hub/shaft drag reduction. The proposed system includes a rigid hub fairing coupled with an inflatable shaft fairing. Flow control jets emit from the shaft fairing and produce an aerodynamic seal between the hub and shaft fairings, utilizing the Coanda Effect to convert the jet momentum to aerodynamic lift on the hub fairing. During Phase I, a subscale helicopter fuselage model employing the proposed drag reduction technology will be testing in a continuous, subsonic wind tunnel with a 6 ft by 6 ft test section. The drag reduction due to the proposed system will be quantified in the wind tunnel tests, and the concept will be further optimized using both computational fluid dynamics and further experiments in Phase II.

* information listed above is at the time of submission.

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