Experimental Active Separation Control on a Wing Section

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,982.00
Award Year:
2001
Program:
STTR
Phase:
Phase I
Contract:
F49620-01-C-0062
Award Id:
52607
Agency Tracking Number:
F013-0110
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1861 Pratt Drive, Suite 2040, Blacksburg, VA, 24060
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
003220998
Principal Investigator:
SemihOlcmen
Principa ResearchEngineer
(540) 961-5742
solcmen@techsburg.com
Business Contact:
TamaraMurray
Business Manager
(540) 961-9110
tmurray@techsburg.com
Research Institute:
VIRGINIA TECH, ME DEPARTMENT
Ricardo Burdisso
Vibration and Acoustics Lab, 153 New Engineering B
Blacksburg, VA, 24060
(540) 231-7355
Nonprofit college or university
Abstract
Technology in Blacksburg (Techsburg) and the Vibration and Acoustics Laboratories (VAL) at Virginia Tech propose to investigate the potential of a combined suction and blowing system to provide active flow control on a 2D wing (airfoil). Techsburg hasdeveloped a novel method to produce suction and blowing from the same fluidic actuator that reduces complexity over separate systems and produces more mass flow for wake filling than traditional blowing. Feedback signals from an array of flush mountedmicrophones, which sense the separated flow region, will be fed to a system controller which will actuate valves for multiple suction and blowing holes on the wing surface. This will force re-attachment of the separated flow and restore the liftingproperties of the wing. This flexibility makes the proposed system unique and opens up new possibilities for new aircraft control laws without flap actuators. The commercial opportunities also extend to enhanced performance of high lift systems oncommercial and military aircraft.A successful and practical method for active flow control has a potentially large market in both military and commercial aviation. The civil aircraft industry may utilize flow control to enable the use of lighter high-liftsystems which will reduce fuel costs. Military aircraft could also benefit from improved high-lift designs, but more improvements are likely for unmanned aircraft such as elimination of traditional control surfaces.

* information listed above is at the time of submission.

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