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Author Ghassemi, Hassan
Affiliation Amirkabir University of Technology Hafez Ave., Tehran, Iran
E-mail gasemi@aut.ac.ir
Author Ghafari, Hamidreza
Affiliation Amirkabir University of Technology Hafez Ave., Tehran, Iran
E-mail hamidghafari230@yahoo.com
Author Homayoun, Esmaeil
Affiliation Amirkabir University of Technology Hafez Ave., Tehran, Iran
E-mail homayoun73223@gmail.com
ISSN printed 1733-8670
URI https://repository.am.szczecin.pl/handle/123456789/2495
Abstract This current work investigates the effect of duct and number of blades on the hydrodynamic performance of the horizontal axis tidal stream turbine (HATST). The numerical method based on Reynolds averaged Navier- Stokes (RANS) equations is employed to compare the hydrodynamic performance for various cases of this device. For validation of the numerical results, a 3-blade HATST without-duct has been compared against experimental data. The analysis and comparison of the simulation results show that using duct for HATST has increased the power coefficient, the torque coefficient, the trust coefficient, and the force on the blade. In addition, the simulation results of the cases with a greater number of blades shows that the trust coefficient increased and the force on the blade decreased. Therefore, it is recommended to use ducted HATST with a great number of blades to extract more energy from the tidal stream.
Pages 23-33
Publisher Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie
Keywords hydrodynamic performance
Keywords tidal turbine
Keywords duct
Keywords number of blades
Keywords pressure
Keywords HATST
Title Hydrodynamic performance of the horizontal axis tidal stream turbine using RANS solver
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ISSN on-line 2392-0378
Language English
Funding No data
Figures 17
Tables 3
DOI 10.17402/298
Published 2018-09-27
Accepted 2018-09-16
Recieved 2018-08-16

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