Improvement of the accuracy of the blade element momentum theory method in wind turbine aerodynamics analysis

Terence Macquart; Alireza Maheri; Krishna Busawon

doi:10.1109/EFEA.2012.6294047

Improvement of the accuracy of the blade element momentum theory method in wind turbine aerodynamics analysis

Terence Macquart, Alireza Maheri, Krishna Busawon

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

7 Citations (Scopus)

Abstract

Blade element momentum theory (BEMT) is based on an iterative process in which the axial and rotational induction factors are determined within an iteration loop. In unsteady BEMT the effect of dynamic stall on the lift coefficient is taken into account. Normally, the effect of dynamic stall on the converged values for induction factors is neglected and correction to the lift coefficient is applied after obtaining induction factors, outside the iteration loop. In this paper it is shown that this can lead to inaccurate results. This paper also proposes a method for reducing the number of iterations significantly and therefore making the integration of dynamic stall inside the iteration loop efficient.

Original language	English
Title of host publication	Proceedings of the 2012 2nd International Symposium On Environment Friendly Energies And Applications
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	402-405
ISBN (Print)	978-1467329095
DOIs	https://doi.org/10.1109/EFEA.2012.6294047
Publication status	Published - 2012
Event	EFEA 2012: 2nd International Symposium on Environment Friendly Energies and Applications - Northumbria University, Newcastle upon Tyne, UK Duration: 27 Jun 2012 → …

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Conference	EFEA 2012: 2nd International Symposium on Environment Friendly Energies and Applications
Period	27/06/12 → …

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10.1109/EFEA.2012.6294047

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title = "Improvement of the accuracy of the blade element momentum theory method in wind turbine aerodynamics analysis",

abstract = "Blade element momentum theory (BEMT) is based on an iterative process in which the axial and rotational induction factors are determined within an iteration loop. In unsteady BEMT the effect of dynamic stall on the lift coefficient is taken into account. Normally, the effect of dynamic stall on the converged values for induction factors is neglected and correction to the lift coefficient is applied after obtaining induction factors, outside the iteration loop. In this paper it is shown that this can lead to inaccurate results. This paper also proposes a method for reducing the number of iterations significantly and therefore making the integration of dynamic stall inside the iteration loop efficient.",

author = "Terence Macquart and Alireza Maheri and Krishna Busawon",

note = "2nd International Symposium on Environment Friendly Energies and Applications (EFEA), 2012, held in Newcaslte upon Tyne from 25-27 June 2012.; EFEA 2012: 2nd International Symposium on Environment Friendly Energies and Applications ; Conference date: 27-06-2012",

year = "2012",

doi = "10.1109/EFEA.2012.6294047",

language = "English",

isbn = "978-1467329095",

pages = "402--405",

booktitle = "Proceedings of the 2012 2nd International Symposium On Environment Friendly Energies And Applications",

publisher = "IEEE",

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}

Macquart, T, Maheri, A & Busawon, K 2012, Improvement of the accuracy of the blade element momentum theory method in wind turbine aerodynamics analysis. in Proceedings of the 2012 2nd International Symposium On Environment Friendly Energies And Applications. IEEE, Piscataway, NJ, pp. 402-405, EFEA 2012: 2nd International Symposium on Environment Friendly Energies and Applications, 27/06/12. https://doi.org/10.1109/EFEA.2012.6294047

Improvement of the accuracy of the blade element momentum theory method in wind turbine aerodynamics analysis. / Macquart, Terence; Maheri, Alireza; Busawon, Krishna.
Proceedings of the 2012 2nd International Symposium On Environment Friendly Energies And Applications. Piscataway, NJ: IEEE, 2012. p. 402-405.

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

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AU - Macquart, Terence

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AU - Busawon, Krishna

N1 - 2nd International Symposium on Environment Friendly Energies and Applications (EFEA), 2012, held in Newcaslte upon Tyne from 25-27 June 2012.

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N2 - Blade element momentum theory (BEMT) is based on an iterative process in which the axial and rotational induction factors are determined within an iteration loop. In unsteady BEMT the effect of dynamic stall on the lift coefficient is taken into account. Normally, the effect of dynamic stall on the converged values for induction factors is neglected and correction to the lift coefficient is applied after obtaining induction factors, outside the iteration loop. In this paper it is shown that this can lead to inaccurate results. This paper also proposes a method for reducing the number of iterations significantly and therefore making the integration of dynamic stall inside the iteration loop efficient.

AB - Blade element momentum theory (BEMT) is based on an iterative process in which the axial and rotational induction factors are determined within an iteration loop. In unsteady BEMT the effect of dynamic stall on the lift coefficient is taken into account. Normally, the effect of dynamic stall on the converged values for induction factors is neglected and correction to the lift coefficient is applied after obtaining induction factors, outside the iteration loop. In this paper it is shown that this can lead to inaccurate results. This paper also proposes a method for reducing the number of iterations significantly and therefore making the integration of dynamic stall inside the iteration loop efficient.

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DO - 10.1109/EFEA.2012.6294047

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BT - Proceedings of the 2012 2nd International Symposium On Environment Friendly Energies And Applications

PB - IEEE

CY - Piscataway, NJ

T2 - EFEA 2012: 2nd International Symposium on Environment Friendly Energies and Applications

Y2 - 27 June 2012

ER -

Improvement of the accuracy of the blade element momentum theory method in wind turbine aerodynamics analysis

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