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Optimal parameters for the FFA-Beddoes dynamic stall model

Abstract

Unsteady aerodynamic effects, like dynamic stall, must be considered in calculation of dynamic forces for wind turbines. Models incorporated in aero-elastic programs are of semi-empirical nature. Resulting aerodynamic forces therefore depend on values used for the semi-empiricial parameters. In this paper a study of finding appropriate parameters to use with the Beddoes-Leishman model is discussed. Minimisation of the `tracking error` between results from 2D wind tunnel tests and simulation with the model is used to find optimum values for the parameters. The resulting optimum parameters show a large variation from case to case. Using these different sets of optimum parameters in the calculation of blade vibrations, give rise to quite different predictions of aerodynamic damping which is discussed. (au)
Authors:
Bjoerck, A; Mert, M; [1]  Madsen, H A [2] 
  1. FFA, The Aeronautical Research Institute of Sweden, Bromma (Sweden)
  2. Risoe National Lab., Roskilde (Denmark)
Publication Date:
Mar 01, 1999
Product Type:
Conference
Report Number:
RISO-R-1114(EN); CONF-990314-
Reference Number:
SCA: 170600; PA: DK-99:001422; EDB-99:087301; SN: 99002098328
Resource Relation:
Conference: EWEC`99. European wind energy conference, Nice (France), 1-5 Mar 1999; Other Information: PBD: Mar 1999; Related Information: Is Part Of Contributions from the Department of Wind Energy and Atmospheric Physics to EWEC `99 in Nice, France; Larsen, Gunnar C.; Westermann, Kirsten; Noergaard, Per [eds.]; PB: 256 p.
Subject:
17 WIND ENERGY; WIND TURBINES; AERODYNAMICS; MATHEMATICAL MODELS; TURBINE BLADES; DYNAMIC LOADS; OPTIMIZATION; PARAMETRIC ANALYSIS
OSTI ID:
679640
Research Organizations:
Risoe National Lab., Roskilde (Denmark). Wind Energy and Atmospheric Physics Dept.
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: ON: DE99747779; ISBN 87-550-2542-0; TRN: DK9901422
Availability:
OSTI as DE99747779
Submitting Site:
DK
Size:
pp. 195-199
Announcement Date:

Citation Formats

Bjoerck, A, Mert, M, and Madsen, H A. Optimal parameters for the FFA-Beddoes dynamic stall model. Denmark: N. p., 1999. Web.
Bjoerck, A, Mert, M, & Madsen, H A. Optimal parameters for the FFA-Beddoes dynamic stall model. Denmark.
Bjoerck, A, Mert, M, and Madsen, H A. 1999. "Optimal parameters for the FFA-Beddoes dynamic stall model." Denmark.
@misc{etde_679640,
title = {Optimal parameters for the FFA-Beddoes dynamic stall model}
author = {Bjoerck, A, Mert, M, and Madsen, H A}
abstractNote = {Unsteady aerodynamic effects, like dynamic stall, must be considered in calculation of dynamic forces for wind turbines. Models incorporated in aero-elastic programs are of semi-empirical nature. Resulting aerodynamic forces therefore depend on values used for the semi-empiricial parameters. In this paper a study of finding appropriate parameters to use with the Beddoes-Leishman model is discussed. Minimisation of the `tracking error` between results from 2D wind tunnel tests and simulation with the model is used to find optimum values for the parameters. The resulting optimum parameters show a large variation from case to case. Using these different sets of optimum parameters in the calculation of blade vibrations, give rise to quite different predictions of aerodynamic damping which is discussed. (au)}
place = {Denmark}
year = {1999}
month = {Mar}
}