High-lift design optimization using Navier-Stokes equations

Date

1996-05-01

Author

Eyi, Sinan
Rogers, SE
Kwak, D

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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 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.

Subject Keywords

Aerospace Engineering

URI

https://hdl.handle.net/11511/38786

Journal

JOURNAL OF AIRCRAFT

DOI

https://doi.org/10.2514/3.46972

Collections

Department of Aerospace Engineering, Article

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Citation Formats

S. Eyi, S. Rogers, and D. Kwak, “High-lift design optimization using Navier-Stokes equations,” JOURNAL OF AIRCRAFT, pp. 499–504, 1996, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38786.