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Shear Sensors for High Speed, High Temperature Flow Applications

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-15-C-0004
Agency Tracking Number: F14A-T08-0225
Amount: $150,000.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: AF14-AT08
Solicitation Number: 2014.1
Solicitation Year: 2014
Award Year: 2015
Award Start Date (Proposal Award Date): 2014-12-15
Award End Date (Contract End Date): 2015-09-15
Small Business Information
3601 South Congress Avenue
Austin, TX 78704
United States
DUNS: 000000000
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Caesar Garcia
 (512) 389-2224
Business Contact
 Wendy Longwood
Phone: (512) 389-2224
Research Institution
 University of Texas
 Neal Hall
10100 Burnet Rd PRC/MER 160 Bldg 160
Austin, TX 78758
United States

 (512) 773-7684
 Nonprofit College or University

ABSTRACT: The principal thrust of the proposed research is the development and testing of a high-speed (MHz range) sensor for measuring the shear stress beneath a hypersonic boundary layer at elevated temperatures. The development of such a sensor will enable the Air-Force to develop more robust empirical models for predicting the wall shear stress in complex 3-D flows. The proposed sensor innovation uses high temperature ferroelectric materials to measure pressure and shear stress across two dimensions. This approach leverages micromachining (i.e., MEMS) processing techniques and aims to achieve all critical Air Force specifications including broadband response to 1-MHz frequencies at high operating temperatures (up to 1,200 K). Testing will be performed using aerodynamic facilities at The University of Texas at Austin. BENEFIT: There is presently a lack of sensors capable of directly measuring shear under the extreme flow conditions encountered in advanced vehicles like the HIFiRE, X-51. The proposed innovation aims to alleviate this void in the form of a compact, robust, broadband shear sensor. The application pool is broad and encompasses the development of advanced weaponry, supersonic combustion, or simply innovative diagnostic tools for test facilities like AEDC.

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

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