Experimental Study on Gas Temperature Control for a High-Speed Heat-Airflow Wind Tunnel
Publication: Journal of Aerospace Engineering
Volume 29, Issue 6
Abstract
In this article, a practical temperature control issue of gas for a high-speed heat-airflow wind tunnel (HSHAWT) is solved. Based on the principal analysis and the system configuration description, the mathematical models to describe the dynamic characteristics of the fuel delivery system and the fuel combustion system are established. Two control frameworks of gas temperature for HSHAWT are proposed. One is to realize the gas temperature control by using the method that regulates the fuel flow rate on the basis of the air flow rate being a constant; the other is the two-loop cascade control framework that takes gas temperature as a controlled objective, fuel flow rate as a controlled object in the secondary control loop, and gas temperature as the controlled object in the main control loop. Furthermore, experimental comparative studies on the flow rate of fuel and temperature of gas are carried out by using a variety of control algorithms, and a satisfactory control effect on the gas temperature is achieved.
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Acknowledgments
This work was supported by National Key Basic Research Program of China under Grant No. 2014CB046403, Natural Science Foundation of China under Grant No. 51475019, and Science and technology research project of Hebei Province, China under Grant No. QN2015079. The authors also would like to thank Senior Engineers Yi Wang and Jian Zhao in China Institute of Changcheng Aviation Measurement Technology for their supports on experiments.
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Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 29 • Issue 6 • November 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Apr 1, 2014
Accepted: Apr 7, 2016
Published online: Jun 29, 2016
Published in print: Nov 1, 2016
Discussion open until: Nov 29, 2016
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