University Of Tasmania
Numerical Investigation of a Horizontal Axis Tidal Turbine.pdf (389.24 kB)

Numerical investigation of a horizontal axis tidal turbine

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conference contribution
posted on 2023-05-23, 11:44 authored by Omid AfsharOmid Afshar, Alan HendersonAlan Henderson, Walker, JM, Xiaolin WangXiaolin Wang
Horizontal Axis Tidal Turbines (HATTs) are one of the most promising technologies available for power generation from tidal energy. In this study, the performance of a twin bladed HATT based on a NACA63-618 cross-section was numerically studied using a Reynolds Averaged Navier-Stokes (RANS) solver with k-ω turbulence model. The power and thrust coefficients at different tip speed ratios were calculated and validated using previously published experimental data. Simulation results indicated that the maximum efficiency of the tidal turbine is approximately 40%, occurring at a tip speed ratio of 6. The pressure distribution at three different sections of the blade span was investigated for three values of tip speed ratio. Boundary layer separation is evident on the suction surface towards the root of the blade section at a tip speed ratio of 5. As tip speed ratio is increased to 7, the separation does not occur.


Publication title

Proceedings of the 20th Australasian Fluid Mechanics Conference (AFMC)






School of Engineering


Australasian Fluid Mechanics Society

Place of publication


Event title

20th Australasian Fluid Mechanics Conference (AFMC)

Event Venue

Perth, Australia

Date of Event (Start Date)


Date of Event (End Date)


Rights statement

Copyright 2016 Australasian Fluid Mechanics Society

Repository Status

  • Open

Socio-economic Objectives

Tidal energy