AN AIRBORNE FLOW VISUALIZATION SYSTEM

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 12698
Amount: $49,981.00
Phase: Phase I
Program: SBIR
Awards Year: 1990
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
18006 Skypark Cir - #108, Irvine, CA, 92714
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 James D Trolinger
 (714) 553-0688
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS IS A PROPOSAL TO DEVELOP AN AIRBORNE FLOW VISUALIZATION SYSTEM WHICH CAN BE INTEGRATED WITH EXISTING AIRCRAFT PODS AND RECORD FLOW FIELD DATA WHICH LOCATE, VISUALIZE, AND CHARACTERIZE LOCAL FLOW PHENOMENA SUCH AS VORTICES, SHOCK WAVES, AND LAMINAR TO TURBULENT FLOW TRANSITION. THE AERODYNAMIC INTERACTION BETWEEN AIRCRAFT STORES AND THE AIRCRAFT ITSELF CONSTITUTES AN EXTREMELY COMPLEX AND ESSENTIALLY UNPREDICTABLE PROBLEM. INSTRUMENTING AN AIRCRAFT TO PROVIDE EXPERIMENTAL DATA ON AIRCRAFT/STORE INTERACTION WILL AUGMENT THE SOLUTION OF THIS PROBLEM. THE PROPOSED DESIGN INCORPORATES A RAPIDLY SCANNED LASER BEAM WHICH IS PROJECTED FROM THE POD AND WHICH ILLUMINATES THE FLOW REGION AROUND AN ADJACENT STORE. DATA CAN BE EXTRACTED FROM EITHER THE LIGHT SCATTERED BY AEROSOLS IN THE FLOW OR LIGHT SCATTERED FROM THE STORE OR AIRCRAFT SURFACE. THE FORMER METHOD IS CALLES LASER SHEET FLOW VISUALIZATION. THE LATTER, DEPENDING UPON THE PROCESSING METHOD CHOSEN CAN BE CATEGORIZED AS EITHER, INDIRECT SHADOWGRAPH, MOIRE DEFLECTOMETRY, SHEAROGRAPHY, OR SPECKLE INTERFEROMETRY.

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

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