Affiliation:
1. National Wind Technology Center National Renewable Energy Laboratory Golden Colorado USA
2. Sandia National Laboratories Albuquerque New Mexico USA
3. Johns Hopkins University Baltimore Maryland USA
Abstract
AbstractThe filtered lifting line theory is an analytical approach used to solve the equations of flow subjected to body forces with a Gaussian distribution, such as used in the actuator line model. In the original formulation, the changes in chord length along the blade were assumed to be small. This assumption can lead to errors in the induced velocities predicted by the theory compared to full solutions of the equations. In this work, we revisit the original derivation and provide a more general formulation that can account for significant changes in chord along the blade. The revised formulation can be applied to wings with significant changes in chord along the span, such as wind turbine blades.
Funder
National Science Foundation
Geothermal Technologies Office
Subject
Renewable Energy, Sustainability and the Environment