High-lift design optimization using Navier-Stokes equations

Eyi S. , Lee K., Rogers S., Kwak D.

JOURNAL OF AIRCRAFT, cilt.33, sa.3, ss.499-504, 1996 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 33 Konu: 3
  • Basım Tarihi: 1996
  • Doi Numarası: 10.2514/3.46972
  • Sayfa Sayıları: ss.499-504


This article presents a design optimization method for maximizing lift without increasing the drag of multielement airfoils at takeoff and landing configurations. It uses an incompressible Navier-Stokes dow solver (INS2D), a chimera overlaid grid system (PEGSUS), and a constrained numerical optimizer (DOT). Aerodynamic sensitivity derivatives are obtained using finite differencing. The method is first validated with single-clement airfoil designs and then applied to three-element airfoil designs. Reliable design results are obtained at reasonable costs. Results demonstrate that numerical optimization fan be an attractive design tool for the development of multielement high-lift systems.