Büscher, Alexander and Radespiel, Rolf and Streit, Thomas (2006) Modelling and Design of wing tip devices at various flight conditions using a databased aerodynamic prediction tool. Aerospace Science and Technology, 10 (8), pp. 668-678. Elsevier. ISSN 1270-9638.
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A design study of wing tip devices at high and low speeds is described. The basis of the design study is an equivalent drag approach containing both aerodynamic drag gain and structural weight penalty. A comprehensive parameter study is carried out using a rapid aerodynamic prediction tool named Lift and Drag Component Analysis (LIDCA). Adding to an available lifting line-method a databased module for airfoil data is employed that uses results of two-dimensional flow simulations by multidimensional interpolation. Detailed validation studies of the method at high lift and high speed have demonstrated good accuracy. RANS computations of the selected wing tip designs confirm the predicted benefits at cruise condition. The result of the most effective wing tip design are analysed at both flight conditions. Finally, options for improving the performance at take-off are suggested.
|Title:||Modelling and Design of wing tip devices at various flight conditions using a databased aerodynamic prediction tool|
|Journal or Publication Title:||Aerospace Science and Technology|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 668-678|
|Keywords:||Winglet, M_DAW, nonplanar wing, induced drag|
|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|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Configuration Design|
|Deposited By:||Dr.rer.nat. Thomas Streit|
|Deposited On:||11 Jan 2007|
|Last Modified:||27 Apr 2009 13:24|
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