| Description |
1 online resource (iv, 31 pages) : color illustrations. |
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text txt rdacontent |
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computer c rdamedia |
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online resource cr rdacarrier |
| Series |
NREL/TP ; 5000-66347 |
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NREL/TP ; 5000-66347.
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| Note |
"November 2019." |
| Bibliography |
Includes bibliographical references. |
| Type Of Report |
Technical report. |
| Funding |
Contract No. DE-AC36-08GO28308 |
| Note |
Description based on online resource; title from PDF title page (NREL, viewed on Sept. 9, 2020). |
| Summary |
The new modularization framework of FAST v.8 (Jonkman 2013) was accompanied by a complete overhaul of the aerodynamics routines. AeroDyn is an aerodynamics module comprised of four submodels: rotor wake/induction, blade airfoil aerodynamics, tower influence on the blade nodes, and tower drag. Throughout the software overhaul, several improvements to the original theoretical treatments were achieved, including more accurate skewed-wake and unsteady airfoil aerodynamics, and the possibility of modeling highly flexible and curved blades. Under asymmetric conditions, such as wind shear, yawed, and tilted flow, the individual blade elements undergo variations in angle of attack that lead to unsteady aerodynamics phenomena, which can no longer be captured through the static airfoil lift and drag look-up tables. This document covers the main theory and the organization of the modularization framework of the new unsteady aerodynamics submodule (UAM)1, which includes unsteady aerodynamics under attached flow conditions and dynamic stall. The UAM can be called by either blade element momentum theory (only interface discussed in this report), or other future wake models (e.g., dynamic blade element momentum theory, or generalized dynamic wake). |
| Subject |
Aerodynamic load -- Mathematical models.
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Wind turbines -- Research.
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Charge aérodynamique -- Modèles mathématiques.
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Éoliennes -- Recherche.
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Aerodynamic load -- Mathematical models
(OCoLC)fst00798183
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| Indexed Term |
dynamic stall |
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FAST |
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modularization framework |
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submodule |
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unsteady aerodynamics |
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wind energy |
| Genre/Form |
technical reports.
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Technical reports (OCoLC)fst01941336
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Technical reports.
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Rapports techniques.
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| Added Author |
Hayman, Greg, author.
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National Renewable Energy Laboratory (U.S.), issuing body.
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| Standard No. |
1576488 OSTI ID |
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0000-0002-8199-1373 |
| Gpo Item No. |
0430-P-03 (online) |
| Sudoc No. |
E 9.16:NREL/TP 5000-66347 |
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