Flow Driven Oscillating Vortex Generators for Control of Boundary Layer Dynamics

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NAS1-02105
Agency Tracking Number: 012311
Amount: $599,737.00
Phase: Phase II
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
34 Lexington Avenue, Ewing, NJ, 08618
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Alan Bilanin
 Principal Investigator
 (609) 538-0444
Business Contact
 Barbara Agans
Title: Business Official
Phone: (609) 538-0444
Email: barbara@continuum-dynamics.com
Research Institution
Active boundary layer control is effective in controlling boundary layer dynamics, but imposes a penalty because of the power and hardware required. In Phase I a family of self-excited Flow Driven Oscillating Vortex Generators (FDOVGs), which oscillate at frequencies where the induced vortical flows have length scales that are of the order of the scale of the aerodynamic surface, and therefore are useful to control boundary layer dyamics, have been demonstrated. The FDOVGs receive power from the mean flow to operate and generate large amplitude oscillations. Deployment can be achieved with no external power by using a flow change to activate the FDOVG, or with external power by changing the geometry or stiffness of the FDOVG.The Phase II effort will provide the aerodynamicist with a new flow control actuator that can be integrated into aerodynamic components. Micro- as well as macro-scale devices with applications on micro air vehicles, unmanned vehicles, jetliners, and over the road vehicles such as tractor-trailer trucks can be developed. The FDOVG is a simple, inexpensive, reliable, and potentially single-part solution to providing effective flow control without significant penalty for a large variety of difficult applications.

* Information listed above is at the time of submission. *

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