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  • 1980-1984  (1)
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    Computational methods for aerodynamic design using numerical optimization (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Five methods to increase the computational efficiency of aerodynamic design using numerical optimization, by reducing the computer time required to perform gradient calculations, are examined. The most promising method consists of drastically reducing the size of the computational domain on which aerodynamic calculations are made during gradient calculations. Since a gradient calculation requires the solution of the flow about an airfoil whose geometry was slightly perturbed from a base airfoil, the flow about the base airfoil is used to determine boundary conditions on the reduced computational domain. This method worked well in subcritical flow.
    Keywords: AERODYNAMICS
    Type: NASA-CR-169930 , NAS 1.26:169930 , CFDL-TR-83-1
    Format: application/pdf
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