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Design of Transonic Airfoils and Wings Based on the Solution of the Euler/Navier-Stokes Equations

Bartelheimer, W. (1994) Design of Transonic Airfoils and Wings Based on the Solution of the Euler/Navier-Stokes Equations. Project Report, DLR-Interner Bericht. 129-94/19, 37 S.

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Abstract

A design method for transonic wings based on the solution of the Euler/Navier-Stokes equations is described. The applied design strategy is a residual-correction approach developed by 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 the transonic small perturbation (TSP-equation). In this design method an analysis code is required, such as the Euler/Navier-Stokes code CEVCATS developed at DLR. Takanashi's method must be modified in order to guarantee the convergence of the design in transonic flow. In addition an algorithm to smooth the contour is used to obtain a smooth surface. In LARA 1.2 the characteristics of the design method are investigated on the basis of the design of transonic airfoils as well as wings in order to estimate the accuracy and convergence.

Document Type:Monograph (Project Report, DLR-Interner Bericht)
Additional Information: LIDO-Berichtsjahr=1995,
Title:Design of Transonic Airfoils and Wings Based on the Solution of the Euler/Navier-Stokes Equations
Authors:
AuthorsInstitution or Email of Authors
Bartelheimer, W.UNSPECIFIED
Date:1994
Number of Pages:37
Status:Published
Keywords:Inverse Design, residual-correction approach, aerodynamic design
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
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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