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Title: AeroDyn Theory Manual

Abstract

AeroDyn is a set of routines used in conjunction with an aeroelastic simulation code to predict the aerodynamics of horizontal axis wind turbines. These subroutines provide several different models whose theoretical bases are described in this manual. AeroDyn contains two models for calculating the effect of wind turbine wakes: the blade element momentum theory and the generalized dynamic-wake theory. Blade element momentum theory is the classical standard used by many wind turbine designers and generalized dynamic wake theory is a more recent model useful for modeling skewed and unsteady wake dynamics. When using the blade element momentum theory, various corrections are available for the user, such as incorporating the aerodynamic effects of tip losses, hub losses, and skewed wakes. With the generalized dynamic wake, all of these effects are automatically included. Both of these methods are used to calculate the axial induced velocities from the wake in the rotor plane. The user also has the option of calculating the rotational induced velocity. In addition, AeroDyn contains an important model for dynamic stall based on the semi-empirical Beddoes-Leishman model. This model is particularly important for yawed wind turbines. Another aerodynamic model in AeroDyn is a tower shadow model based on potentialmore » flow around a cylinder and an expanding wake. Finally, AeroDyn has the ability to read several different formats of wind input, including single-point hub-height wind files or multiple-point turbulent winds.« less

Authors:
;
Publication Date:
Research Org.:
National Renewable Energy Lab., Golden, CO (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
15014831
Report Number(s):
NREL/TP-500-36881
TRN: US200508%%275
DOE Contract Number:  
AC36-99-GO10337
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Jan 2005
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; AERODYNAMICS; POTENTIAL FLOW; ROTORS; SIMULATION; VELOCITY; WIND TURBINES; WIND TURBINE WAKE MODEL; WIND TURBINE AERODYNAMICS; AERODYNAMICS MODEL; WIND ENERGY

Citation Formats

Moriarty, P. J., and Hansen, A. C. AeroDyn Theory Manual. United States: N. p., 2005. Web. doi:10.2172/15014831.
Moriarty, P. J., & Hansen, A. C. AeroDyn Theory Manual. United States. doi:10.2172/15014831.
Moriarty, P. J., and Hansen, A. C. Sat . "AeroDyn Theory Manual". United States. doi:10.2172/15014831. https://www.osti.gov/servlets/purl/15014831.
@article{osti_15014831,
title = {AeroDyn Theory Manual},
author = {Moriarty, P. J. and Hansen, A. C.},
abstractNote = {AeroDyn is a set of routines used in conjunction with an aeroelastic simulation code to predict the aerodynamics of horizontal axis wind turbines. These subroutines provide several different models whose theoretical bases are described in this manual. AeroDyn contains two models for calculating the effect of wind turbine wakes: the blade element momentum theory and the generalized dynamic-wake theory. Blade element momentum theory is the classical standard used by many wind turbine designers and generalized dynamic wake theory is a more recent model useful for modeling skewed and unsteady wake dynamics. When using the blade element momentum theory, various corrections are available for the user, such as incorporating the aerodynamic effects of tip losses, hub losses, and skewed wakes. With the generalized dynamic wake, all of these effects are automatically included. Both of these methods are used to calculate the axial induced velocities from the wake in the rotor plane. The user also has the option of calculating the rotational induced velocity. In addition, AeroDyn contains an important model for dynamic stall based on the semi-empirical Beddoes-Leishman model. This model is particularly important for yawed wind turbines. Another aerodynamic model in AeroDyn is a tower shadow model based on potential flow around a cylinder and an expanding wake. Finally, AeroDyn has the ability to read several different formats of wind input, including single-point hub-height wind files or multiple-point turbulent winds.},
doi = {10.2172/15014831},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {1}
}

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