An Extension of Blade Element Momentum Theory to Incorporate Nonlinear Lift and Drag Coefficients
Abstract
An expression for the steady induced inflow velocity is obtained from blade element and momentum theory considerations. The lift coefficient is allowed to be a quadratic function of angle and attack and the drag coefficient, incorporated through a perturbation procedure, can be any arbitrary function of angle and attack. A principal range of interest is identified in which the function inflow versus blade pitch angle is single valued. The results reduce to the classic formula found in textbooks when the lift coefficient is linear and drag is ignored.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1980
- Accession Number
- ADA098196
Entities
People
- Dewey H. Hodges