Subsonic Aerodynamic Design Via Optimization

  • Krzysztof Kubrynski
Part of the Notes on Numerical Fluid Mechanics (NNFM) book series (NONUFM, volume 65)


The paper presents a panel method which allows to design 3-dimensional configuration with prescribed pressure distribution at specified design angles of attack. Effects of flaps deflection can be incorporated and the induced drag can be minimized. A higher order panel method is applied to perform flow analysis. Flaps deflection is simulated by modifying a Neumann boundary conditions. In the design case the geometry which minimizes differences between the design and actual pressure distributions and/or minimizes induced drag is found iteratively using an optimization technique. Geometrical constrains and regularity conditions can be specified by means of penalty function concept and the requested values of lift and moment coefficients can be enforced using Lagrange multipliers technique.

Key Words

aerodynamic design maneuver flaps design induced drag minimization 


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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH, Braunschweig/Wiesbaden 1999

Authors and Affiliations

  • Krzysztof Kubrynski
    • 1
  1. 1.Institute of Aeronautics and Applied MechanicsWarsaw University of TechnologyWarsawPoland

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