Research and realization on the control strategies of blow-down supersonic wind tunnel

Author

Chu Weihua

Author_Institution

China Aerodynamics R&D Center, Mianyang, China

Volume

2

fYear

2011

fDate

12-14 Aug. 2011

Firstpage

890

Lastpage

893

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/EMEIT.2011.6022985

Filename

6022985