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Research Papers

Dynamic Prescribed Vortex Wake Model for AERODYN/FAST

[+] Author and Article Information
Hugh D. Currin1

Mechanical Engineering, Oregon Institute of Technology, Klamath Falls, OR 97601hugh.currin@oit.edu

Frank N. Coton

Aerospace Engineering, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom

Byard Wood

Mechanical and Aerospace Engineering, Utah State University, Logan, UT 84322

1

Corresponding author.

J. Sol. Energy Eng 130(3), 031007 (Jul 01, 2008) (7 pages) doi:10.1115/1.2931503 History: Received February 09, 2007; Revised February 24, 2008; Published July 01, 2008

A new aerodynamic wake model has been developed for horizontal axis wind turbines. The aim is to develop an engineering tool for investigation and design of furling turbines. The prescribed vortex wake code HAWTDAWG , developed at the University of Glasgow, has been extended for dynamic flow conditions. This dynamic prescribed wake model is built into the aerodynamic code AERODYN and linked to the structural dynamics code FAST . The new model has been compared to unsteady aerodynamic experiment Phase VI wind tunnel data. Comparisons are also made to blade element momentum and generalized dynamic wake models built into AERODYN . Results are encouraging and justify further investigation.

Copyright © 2008 by American Society of Mechanical Engineers
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References

Figures

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Figure 1

Steady state wake

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Figure 2

Wake disturbance

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Figure 3

Disturbed wake close-up

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Figure 4

CN: steady axial, 8m∕s

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Figure 5

CT: steady axial, 8m∕s

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Figure 6

CN: 30deg yaw, 10m∕s, r∕R=0.80

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Figure 7

CT: 30deg yaw, 10m∕s, r∕R=0.80

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Figure 8

CN: 8m∕s, r∕R=0.80

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Figure 9

CT: 8m∕s, r∕R=0.80

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Figure 10

CN: 10m∕s, r∕R=0.80

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Figure 11

CT: 10m∕s, r∕R=0.80

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Figure 12

Yaw release, Sequence E

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Figure 13

Release CN: 7m∕s, r∕R=0.80

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Figure 14

Release CT: 7m∕s, r∕R=0.80

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Figure 15

Release CN: 10m∕s, r∕R=0.80

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Figure 16

Release CT: 10m∕s, r∕R=0.80

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Figure 17

Release/steady CN: 10m∕s, r∕R=0.80

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Figure 18

Release/steady CT: 10m∕s, r∕R=0.80

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