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Computation of flow around wings based on the Euler equations

Published online by Cambridge University Press:  20 April 2006

Arthur Rizzi  and
Lars-Erik Eriksson
Arthur Rizzi
Affiliation:
FFA, The Aeronautical Research Institute of Sweden, S-161 11 Bromma, Sweden
Lars-Erik Eriksson
Affiliation:
FFA, The Aeronautical Research Institute of Sweden, S-161 11 Bromma, Sweden
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Abstract

Inviscid transonic flows containing either strong shock waves or complex vortex structure call for the Euler equations as a realistic model. We present here a computational procedure, termed WINGA2, for solving the Euler equations for transonic flow around aircraft upon a 0–0 mesh generated by transfinite interpolation. An explicit time-marching finite-volume technique solves the flow equations and features a non-reflecting far-field boundary condition and an internal mechanism for temporal damping together with a model for artificial viscosity. The method's convergence to a steady state is studied, and results computed on the CYBER 205 vector processor are presented. The Euler equation model is found to predict the existence of a tip vortex created by flow separating from the downstream region of the tip of the ONERA M6 wing where the radius of curvature approaches zero.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 148 , November 1984 , pp. 45 - 71
Copyright
© 1984 Cambridge University Press

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