Development of Flow-Field Seeding for Large Wind Tunnels

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$599,999.00
Award Year:
2008
Program:
SBIR
Phase:
Phase II
Contract:
FA9101-08-C-0006
Award Id:
79248
Agency Tracking Number:
F061-297-4103
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1925 McKinley Avenue, Suite B, La Verne, CA, 91750
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
196694640
Principal Investigator:
Thomas Sobota
President
(909) 228-9950
thomas.sobota@apri.com
Business Contact:
Jane Sobota
CFO and Corporate Counsel
(909) 392-3152
jane.sobota@apri.com
Research Institute:
n/a
Abstract
The Air Force seeks a large production wind tunnel seeding system with full field steering capability. Additionally, the system must offer control of the particle size and density along with minimal maintenance and flow disturbance characteristics. These features will increase tunnel productivity, and compliment nonintrusive flow visualization techniques, such as Particle Image Velocimetry (PIV), Doppler Global Velocimetry (DGV), and more, without hindering other techniques like Pressure Sensitive Paint (PSP), and force/moment balance measurements among many. Advanced Projects Research, Incorporated (APRI) proposes a design satisfying these requirements using a translating injector array, capable of full field steering and individual injector flow control. A reversible gear pump will be installed for each individual injector delivering adjustable flow rates of propylene glycol to optimize particle number density in the test section. The injector delivers the seed fluid within a stream of regulated coflowing air to allow for desired dispersion of the particles into the tunnel. A central computer system interfaces between the user inputs and all the hardware subsystems

* information listed above is at the time of submission.

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