0
research-article

Power Properties of Two Interacting Wind Turbine Rotors

[+] Author and Article Information
Valery L. Okulov

Department of Wind Energy, Technical University of Denmark, 2800 Lyngby, Denmark
vaok@dtu.dk

Robert Mikkelsen

Department of Wind Energy, Technical University of Denmark, 2800 Lyngby, Denmark
rfmi@dtu.dk

Jens N. N⊘rkær S⊘rensen

Department of Wind Energy, Technical University of Denmark, 2800 Lyngby, Denmark
jnso@dtu.dk

Igor V. Naumov

Institute of Thermophysics, SB RAS, Novosibirsk 630090, Russia
naumov@itp.nsc.ru

Mikhail Tsoy

Institute of Thermophysics, SB RAS, Novosibirsk 630090, Russia
miketsoy@gmail.com

1Corresponding author.

ASME doi:10.1115/1.4036250 History: Received October 17, 2016; Revised March 02, 2017

Abstract

In the current experiments, two identical wind turbine models were placed in uniform flow conditions in a water flume. The initial flow in the flume was subject to a very low turbulence level, limiting the influence of external disturbances on the development of the inherent wake instability. Both rotors are three-bladed and designed using blade element/lifting line (BE/LL) optimum theory at a tip speed ratio, ?, of 5 with a constant design lift coefficient along the span, CL= 0.8. Measurements of the rotor characteristics were conducted by strain sensors installed in the rotor mounting. The resulting power capacity has been studied and analyzed at different rotor positions and a range of tip speed ratios from 2 to 8 and a simple algebraic relationship between the velocity deficit in the wake of the front turbine and the power of the second turbine was found, when both rotors have the coaxial position.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In