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Feedback Flow Control for a Three-Dimensional Turret

Award Information

Agency:
Department of Defense 		Branch:
Air Force 		Award ID:
82244 		Program Year/Program:
2008 / SBIR
Agency Tracking Number:
F071-263-0112 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
Clear Science Corp.
PO Box 233 663 Owego Hill Road Harford, NY -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2008
Title: Feedback Flow Control for a Three-Dimensional Turret
Agency / Branch: DOD / USAF
Contract: FA8650-08-C-3827
Award Amount: $750,000.00
 

Abstract:

Clear Science Corp. proposes to develop feedback systems that control flow over a three-dimensional turret and demonstrate the technology through control-in-the-loop Computational Fluid Dynamics (CFD) simulations and wind tunnel tests. A parallel-track plan is designed to meet two broad objectives: development and demonstration of systems for controlling flow separation with an emphasis on closed-loop control and a broader investigation of the relevant physics associated with the flow including separation, turbulence, density fluctuations, shocks, shock-boundary layer interaction, and aero-optical distortion. In the experimental demonstrations, Particle Image Velocimetry (PIV) measurements will be used to construct low-dimensional models of the flow via the method of Proper Orthogonal Decomposition. PIV and surface-pressure measurements will be used to construct measurement-based estimators through correlations between surface pressure and the unsteady evolution of model variables. Performance-output algorithms will be developed to establish relationships between model variables and the control objective(s). The estimators, input-output algorithms, and regulators will be integrated into a command-and-control system for controlling flow over the three-dimensional turret in a series of wind tunnel tests and control-in-the-loop CFD simulations. Experimental testing will focus on closed-loop control of separation in subsonic flows. CFD tests will target a range of physics associated with sub- and transonic flows.

Principal Investigator:

Henry A. Carlson
President
6078449171
hcarlson@htva.net

Business Contact:

Henry A. Carlson
President
6078449171
hcarlson@htva.net
Small Business Information at Submission:

CLEAR SCIENCE CORP.
PO Box 233 663 Owego Hill Road Harford, NY 13784

EIN/Tax ID: 161603092
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No