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Welcome to the NWTC Design-Codes Publications page. Most of the papers you
will find here are written by our Design-Codes Group and our subcontractors, but
some are of general interest to wind turbine modelers. You can find
documentation for our codes on our user's guides
page.
Feel free to download any of our papers. You will need Adobe Acrobat
Reader™ to read them. If you do not have the latest version of Acrobat
Reader, go here.
If you would like to refer to any of our publications in your paper, please visit our references page.
- Lock_R&M_1014.pdf
An Extension of the Vortex Theory of Airscrews with Applications to Airscrews of Small Pitch, Including Expermiental Results
C.N.H. Lock, H. Bateman, H.C.H. Tiwsend
Reports and Memoranda, No. 1014
His Majesty's Stationery Office
September 1925
- Glauert_R&M_1026.pdf
The Analysis of Experimental Results in the Windmill Brake and Vortex Ring States of an Airscrew
H. Glauert
Reports and Memoranda, No. 1026
His Majesty's Stationery Office
February 1926
- Goldstein_VortexTheoryScrewPropellers_1929.pdf
On the Vortex Theory of Screw Propellers
Sydney Goldstein
St. John's College, Cambridge
January 1929
- FORTRAN_Programmer'sReferenceManual_1956-10-15.pdf
Fortran Programmer's Reference Manual: Automatic Coding System for the IBM 704
Backus, J.W, et al
Applied Science Division And Programming Research Dept.
International Business Machines Corporation
Ney York, NY
October 15, 1956
- WilsonLissaman_AppAeroOfWindPwrMach_1974.pdf
Applied Aerodynamics of Wind Power Machines
Robert E. Wilson
Peter B. S. Lissaman
Oregon State University
May 1974
- WilsonLissamanWalker_AerodynamicPerformanceOfWindTurbines(1976).pdf
Aerodynamic Performance of Wind Turbines
Robert E. Wilson
Peter B. S. Lissaman
Stel N. Walker
Oregon State University
June 1976
- Swift_YawedFlow.pdf
The Effects of Yawed Flow on Wind Turbine Rotors
Andrew H. P. Swift, Jr.
Doctor of Science Dissertation
Washington University
May 1981
- HibbsRadkey_BEM_Theory.pdf
Small Wind Energy Conversion Systems (SWECS) Rotor Performance Model Comparison Study (UNPUBLISHED DRAFT)
B. Hibbs
R.L. Radkey
Aerovironment, Inc.
November 1981
- OstowariNaik_PostStall4415_Part1.pdf
Post Stall Studies of Untwisted Varying Aspect Ratio Blades with an NACA 4415 Airfoil Section - Part I
C. Ostowari
D. Naik
Texas A&M University
Wind Engineering Vol. 8, No. 3, 1984, pp. 176–194
- SERI/STR-217-2559
Post-Stall Wind Tunnel Data for NACA 44XX Series Airfoil Sections
C. Ostowari
D. Naik
Texas A&M University
January 1985
- OstowariNaik_PostStall44XX_Part2.pdf
Post Stall Studies of Untwisted Varying Aspect Ratio Blades with NACA 44XX Series Airfoil Sections - Part II
C. Ostowari
D. Naik
Texas A&M University
Wind Engineering Vol. 9, No. 3, 1985, pp. 149–164
- PetersBoyd - Induced Velocities.pdf
Finite-State Induced-Flow Model for Rotors in Hover and Forward Flight
David A. Peters
David Doug Boyd
Cheng Jian He
School of Aerospace Engineering
Georgia Institue of Technology
October 1989
- NREL/TP-257-4400
Horizontal Axis Wind Turbine Post Stall Airfoil Characteristics Synthesization
James L. Tangler
SERI (now NREL)
Cyrus Ostowari
Texas A&M University
June 1991
- PetersHe_InducedVelocities.pdf
Correlation of Measured Induced Velocities with a Finite-State Wake Model
David A. Peters
Cheng Jian He
School of Aerospace Engineering
Georgia Institue of Technology
July 1991
- Harman_PROPX-2.pdf
PROPX: definitions, derivations, and data flow
C. Ross Harman
Oregon State University
August 1994
- NREL/TP-442-7728
Data Preparation Requirements for Modeling Wind Turbines with ADAMS®
Marshall L. Buhl, Jr.
NREL-NWTC
December 1994
- NREL Airfoil Families for HAWTs
James L. Tangler
NREL-NWTC
Dan M. Somers
Airfoils Incorporated
1995
- PierceThesis.pdf
Wind Turbine Load Prediction Using the Beddoes-Leishman Model for Unsteady Aerodynamics and Dynamic Stall
Kirk Gee Pierce
Dept. of Mechanical Engineering
University of Utah
August 1996
- NREL/CP-440-21670
Effects of Turbulence on Power Generation for Variable-Speed Wind Turbines
Eduard Muljadi
C.P. (Sandy) Butterfield
Marshall L. Buhl, Jr.
NREL-NWTC
November 1996
- NREL/CP-500-23975
Wind Turbine Design Codes: A Preliminary Comparison of the Aerodynamics
Marshall L. Buhl, Jr., Alan D. Wright, and James L. Tangler
NREL-NWTC
December 1997
- NREL/CP-500-24311
Control Strategy for Variable-Speed, Stall-Regulated Wind Turbines
E. Muljadi, K. Pierce, and P. Migliore
NREL-NWTC
April 1998
- MinnemaThesis.pdf
Pitching Moment Predictions on Wind Turbine Blades Using the Beddoes-Leishman Model for Unsteady Aerodynamics and Dynamic Stall
Jeffery Edward Minnema
Dept. of Mechanical Engineering
University of Utah
June 1998
- NREL/TP-500-24919
Dynamic Characterization of the AWT-26 Turbine for Variable Speed Operation
Scott M. Larwood
NREL-NWTC
July 1998
- NREL/CP-500-25513
A Progress Report on the Characterization and Modeling of a
Very Flexible Wind Turbine Design
Neil D. Kelley, Alan D. Wright, and Richard M. Osgood
NREL-NWTC
October 1998
- NREL/CP-500-25514
Validation of a Model for a Two-Bladed Flexible Rotor System:
Progress to Date
Alan D. Wright, Neil D. Kelley, and Richard M. Osgood
NREL-NWTC
November 1998
- NREL/CP-500-25792
Code Development for Control Design Applications
Phase I: Structural Modeling
Gunjit S. Bir and Michael Robinson
NREL-NWTC
November 1998
- NREL/CP-500-25787
Predicting Ultimate Loads for Wind Turbine Design
Peter Hauge Madsen
Risø National Laboratory, Denmark
Kirk Pierce & Marshall L. Buhl, Jr.
NREL-NWTC
November 1998
- NREL/CP-500-25983
Operating Modes of a Teetered-Rotor Wind Turbine
Gunjit S. Bir
NREL-NWTC
Karl Stol
University of Colorado at Boulder
November 1998
- NREL/SR-500-26173
Design of a Tapered and Twisted Blade for the NREL Combined Experiment Rotor
Phillipe Giguère and Michael S. Selig
Department of Aeronautical and Astronautical Engineering
University of Illinois at Urbana-Champaign
April 1999
- NREL/CP-500-26244
Non-Linear and Linear Model Based Controller Design for Variable-Speed Wind Turbines
Maureen M. Hand and Mark J. Balas
NREL-NWTC
April 1999
- FAST_AD.pdf
Technical and User's Manual for the FAST_AD Advanced Dynamics Code
Robert E. Wilson
Stel N. Walker
Ping Hey
Oregon State University
May 1999
- SAND99-0089
On the Fatigue Analysis of Wind Turbines
Herbert J. Sutherland
Sandia National Laboratories
June 1999
- NREL/TP-500-26207
Software Quality-Control Guidelines for Codes Developed for the NWTC
Marshall L. Buhl, Jr.
H. James Green
NREL-NWTC
June 1999
- NREL/TP-500-25540
Variable-Speed Wind Turbine Controller Systematic Design Methodology:
A Comparison of Non-Linear and Linear Model-Based Designs
Maureen M. Hand
NREL-NWTC
July 1999
- NREL/CP-500-26322
Control Method for Improved Energy Capture below Rated Power
K. Pierce
NREL-NWTC
July 1999
- NREL/CP-500-27470
Wind Turbine Design Codes: A Comparison of the Structural Response
Marshall L. Buhl, Jr., Alan D. Wright, and Kirk G. Pierce
NREL-NWTC
January 2000
- NREL/CP-500-24791
A Conservative Control Strategy for Variable-Speed
Stall-Regulated Wind Turbines
E. Muljadi, K. Pierce, and P. Migliore
NREL-NWTC
February 2000
- NREL/CP-500-27143
Pitch-Controlled Variable-Speed Wind Turbine Generation
Ed Muljadi and C.P. "Sandy" Butterfield
NREL-NWTC
February 2000
- setup.pdf
Installing NWTC Design Codes on PCs Running Windows NT®
Marshall L. Buhl, Jr.
NREL-NWTC
December 22, 2000
103KB
- NREL/CP-500-28848
FAST_AD Code Verification: A Comparison to ADAMS
M.L. Buhl, Jr., A.D. Wright, and K.G. Pierce
NREL-NWTC
January 8-11, 2001
- Gorlov2001.pdf
Limits of the Turbine Efficiency for Free Fluid Flow
Alexander N. Gorban'
Institute of Computational Modeling, Krasnoyarsk, Russia
Alexander M. Gorlov
Hydro-Pneumatic Power Laboratory, Northeastern University, Boston, MA
Valentin M. Silantyev
Department of Mathematics, Northeastern University, Boston, MA
December 2001
- NREL/TP-500-35109
Evaluation of RCAS Inflow Models for Wind Turbine Analysis
Jim Tangler, Gunjit Bir
NREL-NWTC
February 2004
- NREL/TP-500-34421
Extrapolation of Extreme and Fatigue Loads Using Probabilistic Methods
P.J. Moriarty, W.E. Holley, S.P. Butterfield
NREL-NWTC
November 2004
- FatLifeCalcByRFCycleCountingMeth_Ariduru.pdf
Fatigue Life Calculation by Rainflow Cycle Counting Method
Seçil Ariduru
Graduate School of Natural and Applied Sciences
Middle East Technical University
December 2004
- NREL/CP-500-38456
Wind Turbine Post-Stall Airfoil Performance Characteristics Guidelines for Blade-Element Momentum Methods
James L. Tangler
NREL-NWTC
J. David Kocurek
Computational Methodology Associates
January 2005
- BuhlCodeSuitePaper.pdf
The NWTC Design-Codes Suite: An Overview
Marshall L. Buhl Jr.
NREL-NWTC
January 2005
- NREL/CP-500-36881
AeroDyn Theory Manual
Pat J. Moriarty
NREL-NWTC
A. Craig Hansen
Windward Engineering
January 2005
- GL_Report.pdf
Evaluation Report: Design Codes FAST and ADAMS® for Load Calculations of Onshore Wind Turbines
Andreas Manjock
Germanischer Lloyd WindEnergie GmbH
May 2005
- NREL/CP-500-36834
A New Empirical Relationship between Thrust Coefficient and Induction Factor for the Turbulent Windmill State
Marshall L. Buhl Jr.
NREL-NWTC
August 2005
- NREL/CP-500-39113
A Comparison of Wind Turbine Aeroelastic Codes Used for Certification
Marshall L. Buhl Jr.
NREL-NWTC
Andreas Manjock
Germanischer Lloyd WindEnergie GmbH
January 2006
- NREL/CP-500-40979
Development and Verification of a Fully Coupled Simulator for Offshore Wind Turbines: Preprint
Jason M. Jonkman
Marshall L. Buhl Jr.
NREL-NWTC
January 2007
- NREL/CP-500-41714
Loads Analysis of a Floating Offshore Wind Turbine Using Fully Coupled Simulation: Preprint
Jason M. Jonkman
Marshall L. Buhl Jr.
NREL-NWTC
June 2007
- dissertation_Larwood.pdf
Dynamic Analysis Tool Development for Advanced Geometry Wind Turbine Blades
Scott Michael Larwood
U.C.-Davis
2009
- 244_Wetzel_AWEA2009_Paper
Necessity for Using Nonlinear Structural Analysis in Designing Blades
Kyle K. Wetzel
Wetzel Engineering, Inc.
May 7, 2009
- Baltazar_DuctedPropellers.pdf
On the Modelling of the Flow in Ducted Propellers With a Panel Method
João Baltazar
Marine Environment and Technology Center (MARETEC)
Department of Mechanical Engineering, Instituto Superior Técnico (IST), Lisbon, Portugal
June 2009
- McWilliam_Crawford_BEMiteration_WindEngineering_2011.pdf
The Behavior of Fixed Point Iteration and Newton-Raphson Methods in
Solving the Blade Element Momentum Equations
Michael McWilliam
Curran Crawford
University of Victoria
Published in Wind Engineering vol. 34, iss. 1, pgs. 17-34
December 2010
- AIAA-2011-150-703.pdf
An Investigation of WT_Perf Convergence Issues
David C. Maniaci
The Pennsylvania State University
January 2011
- NREL/SR-5000-53872
Seismic Loading for FAST
M.A. Asareh
I. Prowell
Missouri University of Science & Technology
NREL Technical Monitor: Jason Jonkman
May 2011 - August 2011
This page was last updated by B. Jonkman on 13-November-2012.
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