Automatic control of test parameters for intake measurements in a low-speed wind tunnel

Author

Friedrichs, R. ; Siebert, R.

Author_Institution

DLR, Braunschweig, Germany

fYear

1991

fDate

27-31 Oct 1991

Firstpage

348

Lastpage

358

Abstract

An automatic process control method has been developed for intake measurements in a low-speed wind tunnel. Three computers were used as supervisors for process control and data acquisition. They were connected via a local area network. In the low-speed range the inlet flows into the model were simulated by sucking air through the intakes. To calculate the Mach number in the compressor entrance plane it is necessary to measure the total pressure distribution and the mass flow using for the latter standardized nozzles in the piping system. The mass flows were adjusted by remote-controlled regulating valves. The designed control systems demonstrate that automation increases the efficiency of the wind tunnel measurement technique

Keywords

aerospace simulation; aerospace testing; automatic test equipment; computerised control; data acquisition; flow control; flow measurement; flow simulation; nozzles; wind tunnels; Mach number; aerodynamic tests; automatic process control; compressor entrance; control systems; data acquisition; intake measurements; landing; local area network; low-speed wind tunnel; mass flow; piping; remote-controlled regulating valves; standardized nozzles; take-off; total pressure distribution; Automatic control; Automatic testing; Computational modeling; Control systems; Fluid flow measurement; Local area networks; Pressure measurement; Process control; SCADA systems; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation in Aerospace Simulation Facilities, 1991. ICIASF '91 Record., International Congress on

Conference_Location

Rockville, MD

Type

conf

DOI

10.1109/ICIASF.1991.186258

Filename

186258