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HYLTEC Laminar Flow Systems Flight Tests: Flight Testing of Anti-Icing and Anti-Contamination Systems on the DLR Do228 Test Vehicle

Horstmann, K.H. and Meyer, J. and Rohardt, C.H. and Kommallein, S. (2003) HYLTEC Laminar Flow Systems Flight Tests: Flight Testing of Anti-Icing and Anti-Contamination Systems on the DLR Do228 Test Vehicle. CEAS 2003 Conference, London (uk), 10.-12.06.2003.

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Abstract

Hybrid laminar flow control (HLFC) promises a large potential for drag reduction. Much effort has been put into the development of this technology, but relatively little experience has been gained with the hardware and systems that will be required to protect the wing surface against ice accretion and insect contamination. In frame of the European program HYLTEC a new leading edge box has been developed for the wing of the DLR test aircraft Dornier Do 228. The box is equipped with a laser drilled suction surface in combination with different test panels for bleed air anti-icing, shield protection, fluidic anti-contamination, fluidic anti-icing and a reference area. Suction pressure is produced by a bleed air driven jet pump. The pressure distribution can be measured by one row of pressure taps. Transition location is observed by an infrared camera. A video camera near the wing tip records insect and ice accretion at the leading edge. The flight tests have been conducted in four test campaigns starting December 2001 and being completed in September 2002. First tests of the suction system showed that depending on flap deflection and suction velocity transition locations between 25% and 50% of chord length could be achieved. Without suction no laminar flow could be observed. In three test campaigns the different systems show their ability to keep the surface clean against insect contamination and ice accretion. The mechanical construction as well as the systems layout and the instrumentation is described in detail in [1] and [2].

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2004,
Title:HYLTEC Laminar Flow Systems Flight Tests: Flight Testing of Anti-Icing and Anti-Contamination Systems on the DLR Do228 Test Vehicle
Authors:
AuthorsInstitution or Email of Authors
Horstmann, K.H.UNSPECIFIED
Meyer, J.UNSPECIFIED
Rohardt, C.H.UNSPECIFIED
Kommallein, S.UNSPECIFIED
Date:2003
Status:Published
Event Title:CEAS 2003 Conference, London (uk), 10.-12.06.2003
Organizer:CEAS
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Claudia Grant
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:30

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