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A study of modified vertical axis tidal turbine to improve lift performance

A study of modified vertical axis tidal turbine to improve lift performance
A study of modified vertical axis tidal turbine to improve lift performance
A design of Darrieus vertical axis tidal turbine using modified airfoil was studied numerically in this work. The turbine design was evaluated in 2D CFD model using k-? turbulence model, upwind interpolation scheme and simulated using OpenFOAM. The turbine had three blades which were arranged symmetrically. The blades were of NACA 0012 airfoil which had been modified in the trailing edge region to increase its lift performance. The modification was made by truncating the trailing edge at the 15% of chord length from the trailing edge. Single normal and blunt airfoil were modelled and investigated prior to the turbine design evaluation. For generating the mesh, C-structured grid was employed to the single airfoil model and hybrid mesh to the vertical axis tidal turbine model. From the single airfoil simulations, it was found that blunt NACA0012 had 12% higher lift coefficient than normal airfoil and the pressure coefficient magnitude of blunt vertical axis tidal turbine significantly rise two times from vertical axis tidal turbine using normal NACA0012 airfoil.
2301-3656
37-41
Arini, Nu
97ed4c38-80f6-4c1b-9ff0-54bf9828c8c9
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Tan, Ming-Yi
4d02e6ad-7915-491c-99cc-a1c85348267c
Arini, Nu
97ed4c38-80f6-4c1b-9ff0-54bf9828c8c9
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Tan, Ming-Yi
4d02e6ad-7915-491c-99cc-a1c85348267c

Arini, Nu, Turnock, Stephen and Tan, Ming-Yi (2016) A study of modified vertical axis tidal turbine to improve lift performance. International Journal of Electrical Energy, 4 (1), 37-41. (doi:10.18178/ijoee.4.1.37-41).

Record type: Article

Abstract

A design of Darrieus vertical axis tidal turbine using modified airfoil was studied numerically in this work. The turbine design was evaluated in 2D CFD model using k-? turbulence model, upwind interpolation scheme and simulated using OpenFOAM. The turbine had three blades which were arranged symmetrically. The blades were of NACA 0012 airfoil which had been modified in the trailing edge region to increase its lift performance. The modification was made by truncating the trailing edge at the 15% of chord length from the trailing edge. Single normal and blunt airfoil were modelled and investigated prior to the turbine design evaluation. For generating the mesh, C-structured grid was employed to the single airfoil model and hybrid mesh to the vertical axis tidal turbine model. From the single airfoil simulations, it was found that blunt NACA0012 had 12% higher lift coefficient than normal airfoil and the pressure coefficient magnitude of blunt vertical axis tidal turbine significantly rise two times from vertical axis tidal turbine using normal NACA0012 airfoil.

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Published date: March 2016
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 395187
URI: https://eprints.soton.ac.uk/id/eprint/395187
ISSN: 2301-3656
PURE UUID: e6031593-4ebd-4efa-9785-58045eefc336
ORCID for Stephen Turnock: ORCID iD orcid.org/0000-0001-6288-0400

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Date deposited: 25 May 2016 15:46
Last modified: 06 Jun 2018 13:14

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Contributors

Author: Nu Arini
Author: Stephen Turnock ORCID iD
Author: Ming-Yi Tan

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