Numerical Investigation of a Horizontal Axis Tidal Turbine.pdf (389.24 kB)
Download fileNumerical investigation of a horizontal axis tidal turbine
conference contribution
posted on 2023-05-23, 11:44 authored by Omid AfsharOmid Afshar, Alan HendersonAlan Henderson, Walker, JM, Xiaolin WangXiaolin WangHorizontal 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.
History
Publication title
Proceedings of the 20th Australasian Fluid Mechanics Conference (AFMC)Pagination
1-4ISBN
978-1-74052-377-6Department/School
School of EngineeringPublisher
Australasian Fluid Mechanics SocietyPlace of publication
AustraliaEvent title
20th Australasian Fluid Mechanics Conference (AFMC)Event Venue
Perth, AustraliaDate of Event (Start Date)
2016-12-05Date of Event (End Date)
2016-12-08Rights statement
Copyright 2016 Australasian Fluid Mechanics SocietyRepository Status
- Open