Title :
Automatic control of test parameters for intake measurements in a low-speed wind tunnel
Author :
Friedrichs, R. ; Siebert, R.
Author_Institution :
DLR, Braunschweig, Germany
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;
Conference_Titel :
Instrumentation in Aerospace Simulation Facilities, 1991. ICIASF '91 Record., International Congress on
Conference_Location :
Rockville, MD
DOI :
10.1109/ICIASF.1991.186258
