An Improved Integral Equation Method for the Design of Transonic Airfoils and Wings.
Bartelheimer, W. (1995) An Improved Integral Equation Method for the Design of Transonic Airfoils and Wings. In: Proc. 12th AIAA Computational Fluid Dynamics Conference 1995. 12th AIAA Computational Fluid Dynamics Conference 1995.
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A design method for transonic airfoils and wings based on the solution of the Euler-/Navier-Stokes equations is described. The applied design strategy is an inverse design method based on the work of Takanashi. The difference between the computed pressure distribution of a given geometry and the prescribed target pressure distribution is iteratively reduced by the solution of an inverse formulated transonic small perturbation equation (TSP-equation). In this design method an analysis code is required, such as the Euler-/Navier-Stokes code CEVCATS developed at DLR. It is shown that Takanashi's method must be modified in order to ensure the convergence of the design in transonic flow. In addition a smoothing algorithm based on Bezier curves is used to obtain a smooth surface. In order to estimate the accuracy and convergence of the design method, a redesign of a known transonic airfoil and wing is.
|Document Type:||Conference or Workshop Item (Paper)|
|Additional Information:||LIDO-Berichtsjahr=1995, pages=11,|
|Title:||An Improved Integral Equation Method for the Design of Transonic Airfoils and Wings.|
|Journal or Publication Title:||Proc. 12th AIAA Computational Fluid Dynamics Conference 1995|
|Keywords:||inverse design, transonic flow, residual-correction approach, aerodynamic design|
|Event Title:||12th AIAA Computational Fluid Dynamics Conference 1995|
|HGF - Research field:||UNSPECIFIED|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L - no assignement|
|DLR - Research area:||UNSPECIFIED|
|DLR - Program:||L TG - Querschnittstechnologien|
|DLR - Research theme (Project):||L - Systems & Cabin|
|Location:||Köln-Porz , Braunschweig , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||03 Apr 2006|
|Last Modified:||27 Apr 2009 10:05|
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