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TsAGI Science Journal

ISSN Print: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.v46.i7.30
pages 647-656

PARAMETRIC DESCRIPTION OF THE AIRFOIL USING COMBINED POLYNOMIAL FUNCTIONS FOR OPTIMIZATION APPLICATIONS

Nikolay Vladimirovich Nikolaev
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky St., Zhukovsky, 140180, Moscow Region, Russia

ABSTRACT

An approach for airfoil parameterization using geometric parameters is proposed. This approach is meant to be used for the analytical airfoil contours. A class of combined polynomial airfoil contours is considered. The approximation accuracy is tested using the example of certain airfoils. The pressure distributions for the original and approximated airfoils are compared. An example of the optimization of the airfoil aerodynamic characteristics is considered.