Multi-element Wind Tunnel Probe for Hypersonic Flow Diagnosis

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 20167
Amount: $53,269.00
Phase: Phase I
Program: SBIR
Awards Year: 1993
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Interscience, Inc.
105 Jordan Rd, Troy, NY, 12180
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr. James Castracane
 (518) 283-7500
Business Contact
Phone: () -
Research Institution
For the accurate analysis of hypersonic flows in wind tunnels, it is necessary to have precise measurements of the flow profiles to better understand the effects of short scale length turbulence. Current methods are lacking in time response, durability and reproducibility. The development of a durable, optically based sensor array capable of spatially resolved, real time pressure profile fluctuation measurements is proposed. From these measurements, thermodynamic fluctuations may be derived. The innovative features of the Multi-element Wind Tunnel Probe (MWTP) are two fold. First, the signals are based on optical effects for fast response and high resolution. Second, the transducer array will be fabricated using semiconductor manufacturing techniques and will be coated with diamond-like films for protection against high temperature, corrosive wind tunnel conditions. Design of a compact probe with multiple sensors is proposed in Phase I. Prototype demonstrations of the critical components will be done. Through the use of such a system, high temporally and spatially resolved measurements may be made in hostile environments. The importance of this innovation is its impact on aerospace research and in particular, as a powerful new diagnostic for wind tunnel studies.

* information listed above is at the time of submission.

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