Horstmann, K.H. and Schrauf, G.; Airbus Deutschland and Sawyers, D.M.; Airbus UK and Sturm, H.; AOA (2002) A Simplified Suction System for an HLFC Leading Edge Box of an A320 Fin. CEAS Aerospace Aerodynamics Research Conference, Cambridge (uk), 10.-13.06.2002.
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Wind tunnel and flight tests have clearly demonstrated the potential of hybrid laminar flow control (HLFC) for drag reduction. Additional weight and costs of the suction system reduce the efficiency of the HLFC technology. Within the EC funded ALTTA programme a drastically simplified suction system has been proposed. Characteristic of this system is one single suction duct, the leading edge box itself, a double sheet suction surface with suction velocity control by orifices in the inner sheet and a constant speed suction pump directly with the leading edge box. The system is optimised for the design conditions of the aircraft at cruise. Investigations at design and off-design conditions reveal that the simplified system would operate as required within sufficient ranges of all parameters investigated.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||A Simplified Suction System for an HLFC Leading Edge Box of an A320 Fin|
|Keywords:||Hybrid laminar flow, simplified suction system, A320 fin|
|Event Title:||CEAS Aerospace Aerodynamics Research Conference, Cambridge (uk), 10.-13.06.2002|
|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 19:04|
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