Design of Low-Speed Airfoils by Numerical Optimization

750524

02/01/1975

Event
National Business Aircraft Meeting and Engineering Display
Authors Abstract
Content
A practical procedure for the optimum design of low-speed airfoils is demonstrated. The procedure uses an optimization program based on a gradient algorithm coupled with an aerodynamic analysis program that uses a relaxation solution of the in viscid, full-potential equation. The analysis program is valid for both incompressible and compressible flow, thereby making optimum design of high-speed, shock-free airfoils possible. Results are presented for the following three constrained optimization problems at fixed angle of attack and Mach number: (i) adverse pressure-gradient minimization, (ii) pitching-moment minimization, and (iii) lift maximization. All three optimization problems were studied with various aerodynamic and geometric constraints.
Meta TagsDetails
DOI
https://doi.org/10.4271/750524
Pages
15
Citation
Hicks, R., and Vanderplaats, G., "Design of Low-Speed Airfoils by Numerical Optimization," SAE Technical Paper 750524, 1975, https://doi.org/10.4271/750524.
Additional Details
Publisher
Published
Feb 1, 1975
Product Code
750524
Content Type
Technical Paper
Language
English