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ENHANCED LIFT THROUGH DYNAMIC FLOW MANIPULATION

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
18706
Program Year/Program:
1992 / SBIR
Agency Tracking Number:
18706
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
AEROTECH ENGINEERING & RESEARCH CORP.
3115 W 6th Street Lawrence, KS 66049 0604
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1992
Title: ENHANCED LIFT THROUGH DYNAMIC FLOW MANIPULATION
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

1A multi-segmented dynamic leading-edge flap system is proposed as a candidate for lift enhancement through dynamic flow manipulation. Delta wings with sweep angles of 60 degrees or more will be fitted with the proposed leading-edge device of 3 or more flaps. Each flap is controlled with a high-speed digital linear stepper motor and is capable of executing autonomous oscillations. It is intended to capitalize on excitation of helical instability waves of clockwise and counterclockwise spin on the separated leading-edge vortex to manipulate the pressure distribution along the vortex core. This in turn affects the location of vortex breakdown which could lead to enhanced lift and super-maneuverability of a delta or cropped delta wing aircraft. A parallel effort will be spent on incorporating piezo-electric oscillator/exciters on swept wing leading edges, which will dynamically manipulate camber distribution along the wing span in a 3-D fashion. With the proper choice of the driving frequency (i.e., nondimensional Strouhal number), a resonant flow behavior can be excited, which in turn eliminates the need for large-amplitude leading-edge oscillations. We currently estimate a maximum angular oscillation amplitude of +/- 5 degrees.

Principal Investigator:

Dr. Saeed Farokhi
9138426398

Business Contact:

Small Business Information at Submission:

Aerotech Engineering And
3117 Campfire Drive Lawrence, KS 66049

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