TY - CONF
TI - Modeling and Validation of a Cross Flow Turbine using Free Vortex Models and an improved 2D Lift Model
AU - Urbina, R
AU - Peterson, M
AU - Bates, P
AU - Kimball, R
T2 - OCEANS 2010 Seattle
AB - A number of numerical methods have been developed to predict the performance and aerodynamic loads of the Darrieus turbine. Prior work by Reference [1] using blade element methods (BEM) and free vortex methods (FVM) [2] has produced reasonable models that predict the hydrodynamic performance of the Darrieus turbine. The validated models reasonably estimate the performance at low solidities (Nc/R<0), but lose accuracy at higher solidity ratios. Dynamic stall and flow curvature has been recognized by [2] [3] and [4] to be significant modeling parameters which have limited the accuracy of prior models. The current numerical model extends the predictions of the FVM model to a higher solidity ratio range. An improved model is presented for the condition of high angles of attack and for dynamic stall,. Experimental data on a series of two (Nc/R≈.9) and four (Nc/R≈1.8) blade configurations are presented as validation of the modified analytical vortex model.
DA - 2010/09//
PY - 2010
SP - 8
UR - https://ieeexplore.ieee.org/abstract/document/5664420
LA - English
KW - Marine Energy
KW - Tidal
ER -