0

Full Content is available to subscribers

Subscribe/Learn More  >

Simulation and Prediction of Loads in Marine Current Turbine Full-Scale Rotor Blades

[+] Author Affiliations
Junior Senat, Madasamy Arockiasamy

Florida Atlantic University, Boca Raton, FL

Paper No. OMAE2011-49752, pp. 629-636; 8 pages
doi:10.1115/OMAE2011-49752
From:
  • ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 5: Ocean Space Utilization; Ocean Renewable Energy
  • Rotterdam, The Netherlands, June 19–24, 2011
  • ISBN: 978-0-7918-4437-3
  • Copyright © 2011 by ASME

abstract

The paper presents an analysis for predicting the torque, thrust, and bending moments at the root of rotor blades in a horizontal axis marine current turbine using the blade element-momentum theory combined with linear wave theory. The measured current velocities taken near the core of the Florida Current offshore Fort Lauderdale, Florida are used in the evaluation of the loads on the rotor blades. The periodic loading on the blade due to the steady spatial variation of current speeds over the rotor swept area is determined by a limited number of parameters, including tip-speed ratio, Reynolds number, lift and drag coefficients, thrust and torque coefficients, and power coefficient. In the simulation modeling, numerical calculations are carried out for every time step on the assumption of quasi-steady flow. Lift and drag coefficients are calculated as function of incident angles taking into account the 3D effects. The results from this study include simulated thrust and torque when rotor operates in calm water and waves. The variation in the thrust and torque is predicted for certain parameters including wave height and wave frequency. The thrust and torque are evaluated by varying both the rotor’s rotational speed and current speed. It has been found both thrust and torque increase as the current speed increases, and in longer waves the torque is relatively sensitive to the variation of wave height. Both in-plane and out-of-plane bending moments fluctuate significantly and can be predicted by linear wave theory with blade element-momentum theory.

Copyright © 2011 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

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 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