Hydrodynamic performance of the horizontal axis tidal stream turbine using RANS solver

• Autorzy: Ghassemi H. , Ghafari H. , Homayoun E.

Identyfikatory

DOI

10.17402/298

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

tidal turbine; duct; number of blades; pressure; hydrodynamic performance; HATST

• Wydawca: Wydawnictwo Naukowe Akademii Morskiej w Szczecinie
• Czasopismo: Zeszyty Naukowe Akademii Morskiej w Szczecinie
• Rocznik: 2018
• Tom: nr 55 (127)
• Strony: 23--33
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Ghassemi H.

• Amirkabir University of Technology Hafez Ave., Tehran, Iran

autor

Ghafari H.

• Amirkabir University of Technology Hafez Ave., Tehran, Iran

autor

Homayoun E.

• Amirkabir University of Technology Hafez Ave., Tehran, Iran

Bibliografia

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