SECOND-ORDER THEORY FOR AIRFOILS IN NONUNIFORM SHEAR FLOW.
Abstract
A second-order theory was developed for airfoils in nonuniform shear flow. It is assumed that both the nonuniform vorticity in the approaching stream and the disturbances caused by the airfoil are of the same small order of magnitude. The first-order stream function satisfies Laplace's equation, which can be solved by known methods. The second-order stream function satisfies Poisson's equation, which was solved by using the Green's function. Expressions for lift and moment coefficients were obtained for a symmetric Joukowski airfoil in a nonuniformly sheared flow whose velocity profile may be represented by a third-order polynomial. Numerical values of lift and moment coefficients were obtained for parabolic flow past a Joukowski airfoil.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1967
- Accession Number
- AD0664182
Entities
People
- C. F. Shen
- R. J. Wright
Organizations
- Rutgers University Department of Mechanical and Aerospace Engineering