CFD simulation of fixed and variable pitch vertical axis tidal turbine
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In this paper, hydrodynamic analysis of vertical axis tidal turbine (both fixed pitch & variable pitch) is numerically analyzed. Two-dimensional numerical modeling & simulation of the unsteady flow through the blades of the turbine is performed using ANSYS CFX, hereafter CFX, which is based on a Reynolds-Averaged Navier-Stokes (RANS) model. A transient simulation is done for fixed pitch and variable pitch vertical axis tidal turbine using a Shear Stress Transport turbulence (SST) scheme. Main hydrodynamic parameters like torque T, combined moment C M , coefficients of performance C P and coefficient of torque C T , etc. are investigated.
The modeling and meshing of turbine rotor is performed in ICEM-CFD. Moreover, the difference in meshing schemes between fixed pitch and variable pitch is also mentioned. Mesh motion option is employed for variable pitch turbine. This article is one part of the ongoing research on turbine design and developments. The numerical simulation results are validated with well reputed analytical results performed by Edinburgh Design Ltd. The article concludes with a parametric study of turbine performance, comparison between fixed and variable pitch operation for a four-bladed turbine. It is found that for variable pitch we get maximum C P and peak power at smaller revolution per minute N and tip sped ratio λ.
- ANSYS CFX Release 13.0 help. Mechanical user guide. Documentation ANSYS Europe, Ltd.
- Batten, WMJ (2007) Experimentally validated numerical method for the hydrodynamic design of horizontal axis tidal turbines. Journal of Ocean Eng. 34: pp. 1013-1020 CrossRef
- Charlier, RH (2003) A “sleeper” awakes: tidal current power. Renewable and Sustainable Energy Reviews 7: pp. 515-29 CrossRef
- Coiro, DP, Maisto, U, Scherillo, F, Melone, S, Grasso, F (2006) Horizontal axis tidal current turbine: Numerical and experimental investigations. Proceedings of the OWEMES, Civitavecchia, Italy, 20–22.
- Drees, HM (1978) The Cycloturbine and its Potential for Broad Application. 2 nd International Symposium on Wind Energy Systems. pp. 3-6
- Variable pitch foils vertical axis tidal turbine final report.
- Golecha, K, Eldho, TI, Prabhu, S 2012 (2012) Study on the interaction between two hydrokinetic savonius turbines. Journal of Rotating Machinery 2012: pp. 1-10 CrossRef
- Hyman, JM, Knapp, R, Scovel, JC (1992) High order finite volume approximations of differential operators on non-uniform grids. Physica D 60: pp. 112-138 CrossRef
- Khan, M, Bhuyan, G, Iqbal, M, Quaicoe, J (2009) Hydrokinetic energy conversion systems and assessment of horizontal and vertical axis turbines for river and tidal applications: a technology status review. Journal of Applied Energy 86: pp. 1823-1835 CrossRef
- Kirke, BK, Lazauskas, L (2011) Limitations of fixed pitch Darrieus hydrokinetic turbines and the challenge of variable pitch. Journal of renewable energy 36: pp. 893-897 CrossRef
- Lazauskas, L, Kirke, BK (2012) Modeling passive variable pitch cross flow hydrokinetic turbines to maximize performance and smooth operation. Journal of Renewable Energy 45: pp. 41-50 CrossRef
- McConnell, RD (1979) Giro-mill overview. Wind Energy Innovative Systems Conference, Colorado Springs, USA. pp. 1-14
- Meikle, PJ (1993) A Family of novel vertical axis wind Turbines. Univ. of Melbourne, Melbourne
- Menter, FR (1994) Two-Equation Eddy-viscosity turbulence models for engineering applications. AIAA Journal 32: pp. 1598-1605 CrossRef
- Pawsey, NCK (2002) Development and evaluation of passive variable-pitch vertical axis wind turbines. The University of New South Wales, Kingsford, Australia
- Rourke, FO, Boyle, F, Reynolds, A (2009) Renewable energy resources and technologies applicable to Ireland. Renewable and Sustainable Energy Rev 13: pp. 1975-1984 CrossRef
- Salvatore F, Greco L, Calcagno G. A Theoretical & computational methodology to study vertical-axis turbines hydrodynamics. (http://220.127.116.11/test/owemes/34.pdf [accessed on: 12.04.2012]
- Shikha, S, Bhatti, TS, Kothari, DP (2005) Early development of modern vertical and horizontal axis wind turbines: a review. Journal of Wind Engineering 29: pp. 287-300 CrossRef
- Sun, Y, Zhang, L (2012) Airfoil optimization of vertical-axis turbines based on CFD method. 2 nd International Conf. on Computer Modeling & Simulation. pp. 199-202
- Zanette, J, Imbault, D, Tourabi, A (2010) A design methodology for cross flow water turbines. Journal of Renew Energy 35: pp. 997-1009 CrossRef
- CFD simulation of fixed and variable pitch vertical axis tidal turbine
Journal of Marine Science and Application
Volume 12, Issue 2 , pp 185-192
- Cover Date
- Print ISSN
- Online ISSN
- Harbin Engineering University
- Additional Links
- vertical axis turbine
- tidal energy
- fixed pitch
- variable pitch
- Industry Sectors
- Author Affiliations
- 11184. Deep Water Engineering Research Center, Harbin Engineering University, Harbin, 150001, China
- 21184. Chinese Academy of Agricultural Mechanization Sciences Huhhot Branch, Huhhot, China