Shock Generation and Control Using DBD Plasma Actuators

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,999.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
NNX11CD87P
Award Id:
n/a
Agency Tracking Number:
105289
Solicitation Year:
2010
Solicitation Topic Code:
A2.05
Solicitation Number:
n/a
Small Business Information
Innovative Technology Applications Co. (Currently Innovative Technology Applications Co., L. L. C.)
MO, Chesterfield, MO, 63006-6971
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
126752018
Principal Investigator:
Mehul Patel
Principal Investigator
(480) 247-6611
mppatel@itacllc.com
Business Contact:
Alan Cain
Business Official
(314) 373-3311
abcain@ITACLLC.com
Research Institution:
n/a
Abstract
Shock-wave/boundary-layer interactions (SWBLI) pose challenges to aeronautical engineers because they create regions of adverse pressure gradients as a result of the discontinuous change in conditions across the shock. This shock-induced pressure gradient is a common factor for both flow separation in supersonic inlets and high stagnation pressure losses on transonic wings, factors which are known to reduce performance and efficiency. These affects can be corrected with appropriate forms of flow control. Innovative Technology Applications Company (ITAC) and University of Notre Dame (UND) propose the use of electrohydrodynamic (EHD) plasma actuators to control the affects of SWBLIs for two types of problems, one involving boundary layer separation and the other transonic wave drag. We propose to use plasma actuators near the region of the SWBLI to eliminate or delay the onset of separation in supersonic inlets while using plasma-based shock control methods to reduce the stagnation pressure losses on transonic airfoils. The advantages of the dielectric barrier discharge (DBD) actuators are that they are fully electronic, contain no moving parts, surface mountable, minimally intrusive, can be turned off when not needed, and electrically re-configurable for optimal control in dynamic flow conditions.

* information listed above is at the time of submission.

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