This paper describes the results of experimental investigations on the characterisation of transition and flow separation on a slat of an industrial high-lift configuration by means of advanced flush-mounted surface sensors. Passive vortex generators and active devices were applied on the leading edge in order to control the flow separation. The wind tunnel tests were performed in the DNW-NWB low-speed wind tunnel in Braunschweig using a three-element 2D model in a take-off configuration at Mach numbers Minfinity = 0.1 (Re = 1.5x106) and Minfinity = 0.2 (Re = 3x106). The results presented characterise the flow conditions using surface arrays of hot-wire sensors as well as miniaturised MEMS sensors developed during the European Project Aeromems II. For the base flow, the sensor signals indicate a range of boundary layer transition at low angles of attack a, whereas at higher a flow separation takes place. The application of flow control devices delays the turbulent separation and improves the post-stall behaviour.
Application of advanced surface sensors for the detection and control of flow separation on an industrial high-lift configuration
Verwendung von fortgeschrittenen Oberflächensensoren für den Nachweis und die Steuerung der Strömungsablösung an einer industriellen Hochauftriebskonfiguration
2006
9 Seiten, 14 Bilder, 9 Quellen
Aufsatz (Konferenz)
Englisch
British Library Conference Proceedings | 2006
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