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Design and Optimization of airfoils in non‐stalling incompressible flow with a prescribed range of the angle of attack
Author(s) -
Elizarov A. M.,
Fokin D. A.
Publication year - 1992
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620350108
Subject(s) - airfoil , angle of attack , aerodynamics , mathematics , flow (mathematics) , range (aeronautics) , incompressible flow , boundary value problem , mathematical analysis , mechanics , geometry , aerospace engineering , physics , engineering
A simple and reliable method of aerodynamic design of airfoils is proposed for a given range of the angle of attack. The method is based on the solution of a new inverse boundary‐value problem of aerohydrodynamics. In the problem the initial velocity distributions are given along the contour of the required airfoil as a function of the are co‐ordinate for extreme values of the angle of attack from a fixed range. We justify a method of choice of these distributions which guarantees a non‐stalling flow around the airfoil. The problem of airfoil optimization is also considered. Results of numerical calculations are presented.