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Development and Application of the High Bandwidth Powered Resonance Tube

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2002 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2002
Title: Development and Application of the High Bandwidth Powered Resonance Tube
Agency / Branch: DOD / USAF
Contract: F49620-02-C-0062
Award Amount: $499,868.00


"The proposed Phase 2 program focuses on the development of Powered Resonance Tube (PRT) actuators for application to Active Flow Control (AFC). For effective control across the full operating envelope of an air vehicle, high bandwidth and authority arerequired. In Phase 1, a new variable-frequency PRT actuator concept was developed and its feasibility was demonstrated. In Phase 2, the new actuator concept will be refined in order to optimize its efficiency and effectiveness. Modified designs thatpermit greater geometric flexibility will also be explored. Experimental, computational and analytical methods will be used in the actuator development and refinement. Scaling information for future applications will also be developed. The PRT actuatoris applicable to both classes of AFC mechanisms: the excitation of instability waves, and forcing at higher frequencies in the inertial subrange of the turbulent flow. Specific applications to be investigated in Phase 2 are: (1) the enhancement ofmixing in a supersonic shear layer through the excitation of instability waves, and (2) the reduction of impinging jet unsteady loads, tonal and non-tonal noise by high-frequency forcing. An AFC preliminary design tool, which incorporates the PRT actuatorscaling information and employs a graphical user interface, will also be developed."

Principal Investigator:

Alan B. Cain

Business Contact:

Nancy Hazinski
Small Business Information at Submission:

Innovative Technology Applications
PO Box 6971 Chesterfield, MO 63006

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Illinois Institute of Technology
3300 South Federal St., MB
Chicago, IL 60616
Contact: Mary T. Spina
Contact Phone: (312) 567-3035
RI Type: Domestic nonprofit research organization