Hydrodynamic performance and the power production of the tidal turbine by new profiles at the leading-edge tubercles

Journal Article

Title: Hydrodynamic performance and the power production of the tidal turbine by new profiles at the leading-edge tubercles

Author:

Ghazi, M.; Ghassemi, H.; Ghafari, M.

Publication Date:

May 30, 2022

Journal:

Ships and Offshore Structures

Volume:

In Press

Publisher:

Taylor & Francis

Affiliation:

Amirkabir University of Technology

Technology:

Current, Axial Flow Turbine, Tidal

Collection Method:

Modeling

Engineering:

Hydrodynamics, Performance, Structural

Document Access

Website:

External Link

Citation

Ghazi, M.; Ghassemi, H.; Ghafari, M. (2022). Hydrodynamic performance and the power production of the tidal turbine by new profiles at the leading-edge tubercles. Ships and Offshore Structures, In Press https://doi.org/10.1080/17445302.2022.2078532

@article{Ghazi-2022-19266,
author = {Ghazi, M and Ghassemi, H and Ghafari, M},
title = {Hydrodynamic performance and the power production of the tidal turbine by new profiles at the leading-edge tubercles},
journal = {Ships and Offshore Structures},
year = {2022},
month = {may},
publisher = {Taylor & Francis},
volume = {In Press},
doi = {10.1080/17445302.2022.2078532},
url = {https://www.tandfonline.com/doi/abs/10.1080/17445302.2022.2078532},
keywords = {Current, Axial Flow Turbine, Tidal, Modeling, Hydrodynamics, Performance, Structural},
}

Export Citation to BibTex

TY - JOUR
TI - Hydrodynamic performance and the power production of the tidal turbine by new profiles at the leading-edge tubercles
AU - Ghazi, M
AU - Ghassemi, H
AU - Ghafari, M
T2 - Ships and Offshore Structures
AB - In this work, two new profiles at the leading-edge tubercles of the tidal turbine have been proposed to predict the hydrodynamic performance and obtain more power production than the original blade with a smooth leading edge. A computational method based on the Reynolds-Averaged Navier-Stokes (RANS) is employed for predicting the hydrodynamic performance of the tidal turbine. The turbulent model of the k−ωSSTk−ωSST (shear stress transport) has been used. A three-bladed tidal turbine with the NREL’s S814 foil section is selected. The numerical results of the power coefficient against tip speed ratio (TSR) show a good agreement in comparison with the experimental data. Then, two new profiles of tubercles, namely zigzag (ZZ) and absolute sinus (AS), at the leading-edge with 0.1 chord length height at each section, are proposed. The results of the power and torque coefficients are significantly increased, especially at higher TSRs.
DA - 2022/05//
PY - 2022
PB - Taylor & Francis
VL - In Press
UR - https://www.tandfonline.com/doi/abs/10.1080/17445302.2022.2078532
DO - 10.1080/17445302.2022.2078532
LA - English
KW - Current
KW - Axial Flow Turbine
KW - Tidal
KW - Modeling
KW - Hydrodynamics
KW - Performance
KW - Structural
ER -

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Abstract

In this work, two new profiles at the leading-edge tubercles of the tidal turbine have been proposed to predict the hydrodynamic performance and obtain more power production than the original blade with a smooth leading edge. A computational method based on the Reynolds-Averaged Navier-Stokes (RANS) is employed for predicting the hydrodynamic performance of the tidal turbine. The turbulent model of the k−ωSSTk−ωSST (shear stress transport) has been used. A three-bladed tidal turbine with the NREL’s S814 foil section is selected. The numerical results of the power coefficient against tip speed ratio (TSR) show a good agreement in comparison with the experimental data. Then, two new profiles of tubercles, namely zigzag (ZZ) and absolute sinus (AS), at the leading-edge with 0.1 chord length height at each section, are proposed. The results of the power and torque coefficients are significantly increased, especially at higher TSRs.