High-lift design optimization using the Navier-Stokes equations

Date

1995-01-09

Author

Eyi, Sinan
Lee, Ki Dong
Rogers, S E

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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 flow 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-element airfoil designs and then applied to three-element airfoil designs. Reliable design results are obtained at reasonable costs. Results demonstrate that numerical optimization can be an attractive design tool for the development of multielement high-lift systems.

URI

https://hdl.handle.net/11511/41417

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Department of Aerospace Engineering, Conference / Seminar