Document Type
Journal Article
Publication Title
Water
Volume
15
Issue
13
Publisher
MDPI
School
School of Engineering
RAS ID
61923
Abstract
This study involves an experimental and numerical analysis of the Hunter turbine, a vertical axis turbine utilized for tidal energy. A laboratory model of the Hunter turbine, featuring an aspect ratio of 1.2, was designed and tested. Numerical equations, including the Reynolds-averaged Navier–Stokes (RANS) constant, were analyzed through computational fluid dynamics (CFD) software using the k- turbulence model to forecast turbine performance and other related flow specifications, such as pressure lines, stream velocity, and pressure. This simulation was conducted on the surface of the turbine blade, and the results were obtained accordingly. The experimental data were utilized to verify the numerical results, and the difference between the two was reasonably acceptable. The turbine was studied in six different flow coefficients and four different vertical positions. The results indicated that the power coefficient increased as the submerged depth from a water-free surface increased, and after a specific depth, the output power remained constant. It was also observed that the minimum depth from a water-free surface for maximum power coefficient was three times the diameter of the turbine drum (3D).
DOI
10.3390/w15132312
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Comments
Ghamati, E., Kariman, H., & Hoseinzadeh, S. (2023). Experimental and computational fluid dynamic study of water flow and submerged depth effects on a tidal turbine performance. Water, 15(13), article 2312. https://doi.org/10.3390/w15132312