Single-step versus coupled-aero-structure simulation of a wind turbine with bend-twist adaptive blades

Alireza Maheri*, Siamak Noroozi, Chris Toomer, John Vinney

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In wind turbines with bend-twist adaptive blades there is an interaction between the induced twist due to elastic coupling and the blade loading as the source load of induced twist. This interaction makes the simulation of these types of wind turbines a coupled aero-structure process that needs an internal correction loop. In each run of the correction loop a finite element analysis of the blade is necessary to find the induced twist and this makes the simulation process very time consuming and cumbersome. On the other hand, in wind turbines with stretchtwist adaptive blades the centrifugal force, as the source load, produces the induced twist but it is not affected by the induced twist directly. Therefore, a single-step simulation can be carried out with no need for a correction loop. A single step simulation is more time efficient than a coupled aero-structure one. This study compares the results of simulations of a modelled wind turbine with bend-twist adaptive blades both by a single step approach and by a coupled aero-structure approach. In this way the question of how accurate can be a single step simulation of a wind turbine with bend-twist adaptive blades, can be answered. Comparison of the results shows that even for small amounts of induced twist and low wind velocities a single step simulation approach gives unrealistic results and cannot be used for simulation of a wind turbine with bend-twist adaptive blades.

Original languageEnglish
Title of host publicationEuropean Wind Energy Conference and Exhibition 2006, EWEC 2006
Pages440-445
Number of pages6
Volume1
Publication statusPublished - 2006
EventEuropean Wind Energy Conference and Exhibition 2006, EWEC 2006 - Athens, Greece
Duration: 27 Feb 20062 Mar 2006

Conference

ConferenceEuropean Wind Energy Conference and Exhibition 2006, EWEC 2006
CountryGreece
CityAthens
Period27/02/062/03/06

Fingerprint

Wind turbines
Turbomachine blades
Finite element method

Keywords

  • Adaptive blades
  • Elastic coupling
  • Induced twist
  • Wind turbine simulation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Cite this

Maheri, A., Noroozi, S., Toomer, C., & Vinney, J. (2006). Single-step versus coupled-aero-structure simulation of a wind turbine with bend-twist adaptive blades. In European Wind Energy Conference and Exhibition 2006, EWEC 2006 (Vol. 1, pp. 440-445)

Single-step versus coupled-aero-structure simulation of a wind turbine with bend-twist adaptive blades. / Maheri, Alireza; Noroozi, Siamak; Toomer, Chris; Vinney, John.

European Wind Energy Conference and Exhibition 2006, EWEC 2006. Vol. 1 2006. p. 440-445.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Maheri, A, Noroozi, S, Toomer, C & Vinney, J 2006, Single-step versus coupled-aero-structure simulation of a wind turbine with bend-twist adaptive blades. in European Wind Energy Conference and Exhibition 2006, EWEC 2006. vol. 1, pp. 440-445, European Wind Energy Conference and Exhibition 2006, EWEC 2006, Athens, Greece, 27/02/06.
Maheri A, Noroozi S, Toomer C, Vinney J. Single-step versus coupled-aero-structure simulation of a wind turbine with bend-twist adaptive blades. In European Wind Energy Conference and Exhibition 2006, EWEC 2006. Vol. 1. 2006. p. 440-445
Maheri, Alireza ; Noroozi, Siamak ; Toomer, Chris ; Vinney, John. / Single-step versus coupled-aero-structure simulation of a wind turbine with bend-twist adaptive blades. European Wind Energy Conference and Exhibition 2006, EWEC 2006. Vol. 1 2006. pp. 440-445
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