Title :
Research and realization on the control strategies of blow-down supersonic wind tunnel
Author_Institution :
China Aerodynamics R&D Center, Mianyang, China
Abstract :
As the characteristics of nonlinear, time-varying and big time delay in the ejecting blow-down supersonic wind tunnel, it will occur the interference and coupling between the total pressure control system and ejector control system in the ejection test mode. In order to meet the requirements of high control accuracy and the stable velocity of convergence of wind tunnel tests, the control strategies for the startup of wind tunnel and stability of flow field under different testing conditions are made deep study and successful application during the wind tunnel tests.
Keywords :
Mach number; aerodynamics; delays; flow control; flow instability; pressure control; supersonic flow; Mach number; aerodynamic configuration; blow-down supersonic wind tunnel; control strategies; ejection test mode; ejector control system; flow field control; flow stablity; pressure control system; time delay; time-varying delay; Accuracy; Pipelines; Pressure control; Process control; Regulators; Valves; Closed-loop control; Windtunel wind tunel; flow field; total pressure;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6022985
