You are here

Fast Response Heat Flux Sensors and Efficient Data Reduction Methodology for Hypersonic Wind Tunnels

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-19-C-0006
Agency Tracking Number: F17A-001-0154
Amount: $749,993.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: AF17A-T001
Solicitation Number: 17.A
Solicitation Year: 2017
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-02-18
Award End Date (Contract End Date): 2021-02-18
Small Business Information
400 Sugar Camp Circle Suite 302
Dayton, OH 45409
United States
DUNS: 079509319
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Ryan J Meritt
 (937) 272-5880
Business Contact
 Ryan Meritt
Phone: (937) 272-5880
Research Institution
 Virginia Polytechnic Institute and State University
 Na Ren Na Ren
300 Turner Street Suite 4200
Blacksburg, VA 24061
United States

 (540) 231-5445
 Nonprofit College or University

Accurate knowledge of heat flux is critical in assessing the design, performance, and survivability of hypersonic flight vehicles. Despite decades of research and testing, much is still unknown regarding hypersonic instabilities and transition mechanisms that define the state of the boundary layer. While the existence of these features is known, the ability to accurately measure them remains a challenge. In Phase II, the heat flux sensors and efficient data reduction methodology will be developed and demonstrated in a representative hypersonic flow environment. An improved semiconductor temperature gage will be manufactured that is specifically tailored to the heat flux sensor application. Both the indirect and direct sensor designs will be pursued while improvements are made in their manufacturing process. The sensors will undergo NIST-traceable static and dynamic calibrations to demonstrate the sensor frequency response, precision, and accuracy. The experimental campaign in the small-scale hypersonic wind tunnel will be expanded. The focus of the data-algorithm development will be on the experiment-based calibration of the model parameters and a scheme for resolving the second-mode fluctuations using an adaptive reconstruction strategy. The program will conclude with a demonstration in a USAF hypersonic facility.

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

US Flag An Official Website of the United States Government