Nonlinear blade element-momentum analysis of Betz-Goldstein rotors

D. H. Wood; Valery Okulov

doi:10.1016/j.renene.2017.02.027

Nonlinear blade element-momentum analysis of Betz-Goldstein rotors

D. H. Wood
, Valery Okulov

University of Calgary

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

•We analyze Betz-Goldstein (BG) rotors for maximum power at any tip speed ratio and number of blades.•We prove that Glauert's incorporation of tip loss in the blade torque and thrust equation are correct.•We show the nonlinear angular momentum terms can contribute 12% of the total torque.

Original language	English
Journal	Renewable Energy
Volume	107
Pages (from-to)	542-549
ISSN	0960-1481
DOIs	https://doi.org/10.1016/j.renene.2017.02.027
Publication status	Published - 2017

Keywords

Wind turbine
Tip loss
Blade element analysis
Nonlinear contributions

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@article{65de5b7496a448f3b7cb53e8ebf2ff66,

title = "Nonlinear blade element-momentum analysis of Betz-Goldstein rotors",

abstract = "•We analyze Betz-Goldstein (BG) rotors for maximum power at any tip speed ratio and number of blades.•We prove that Glauert's incorporation of tip loss in the blade torque and thrust equation are correct.•We show the nonlinear angular momentum terms can contribute 12\% of the total torque.",

keywords = "Wind turbine, Tip loss, Blade element analysis, Nonlinear contributions",

author = "Wood, \{D. H.\} and Valery Okulov",

year = "2017",

doi = "10.1016/j.renene.2017.02.027",

language = "English",

volume = "107",

pages = "542--549",

journal = "Renewable Energy",

issn = "0960-1481",

publisher = "Elsevier",

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TY - JOUR

T1 - Nonlinear blade element-momentum analysis of Betz-Goldstein rotors

AU - Wood, D. H.

AU - Okulov, Valery

PY - 2017

Y1 - 2017

N2 - •We analyze Betz-Goldstein (BG) rotors for maximum power at any tip speed ratio and number of blades.•We prove that Glauert's incorporation of tip loss in the blade torque and thrust equation are correct.•We show the nonlinear angular momentum terms can contribute 12% of the total torque.

AB - •We analyze Betz-Goldstein (BG) rotors for maximum power at any tip speed ratio and number of blades.•We prove that Glauert's incorporation of tip loss in the blade torque and thrust equation are correct.•We show the nonlinear angular momentum terms can contribute 12% of the total torque.

KW - Wind turbine

KW - Tip loss

KW - Blade element analysis

KW - Nonlinear contributions

U2 - 10.1016/j.renene.2017.02.027

DO - 10.1016/j.renene.2017.02.027

M3 - Journal article

SN - 0960-1481

VL - 107

SP - 542

EP - 549

JO - Renewable Energy

JF - Renewable Energy

ER -

Nonlinear blade element-momentum analysis of Betz-Goldstein rotors

Abstract

Keywords

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