Investigating of Flow Field and Power Performance on a Straight-blade Vertical Axis Wind Turbine with CFD Simulation
Journal of Energy Research and Reviews,
Forecasting the power performance and flow field of straight-blade vertical axis wind turbine (VAWT) and paying attention to the dynamic stall can enhance more adaptability to high turbulence and complicated wind conditions in cities environment. According to the blade element-momentum theory, the force of blade is analyzed in one period of revolution based on the structural characteristics of straight blade airfoil. The power performance of VAWT obtained by computational fluid dynamics (CFD) simulation is compared with experiment to estimate the accuracy about the numerical simulation results. As a result, the trend of average value of simulation Cpower is entirely consistent with the value of experiment data, and the extreme value of average Cpower of VAWT is 0.225 for tip speed ration (TSR) λ=2.19 when the freestream velocity is 8 m/s. The flow separation around the blade surface also gradually changes with the azimuth angle increasing, and the maximum pressure difference on the blade surface appears in the upstream. In the case of high leaf tip velocity, the synthetic velocity is much larger than the incoming wind velocity, and the angle of synthetic velocity increases slightly with the increase of blade tangential velocity. Thus, the angles of attack are very close in two TSRs λ=2.19 and 2.58. The research provides a computational model and theoretical basis for predicting wind turbine flow field to improve wind turbine power performance.
- CFD simulation
- TSR; flow field
- power performance
How to Cite
Georgilakis PS. Technical challenges associated with the integration of wind power into power systems. Renewable and Sustainable Energy Reviews. 2008;12: 852-863.
Dessoky A, Lutz T, Bangga G and Krämer E. Computational studies on Darrieus VAWT noise mechanisms employing a high order DDES model. Renewable Energy. 2019;143:404-425.
Wu G, Zhang L and Yang K. Development and validation of aerodynamic measurement on a horizontal axis wind turbine in the field. Applied Sciences. 2019;9:1-21.
Li Q, Maeda T, Kamada Y, Shimizu K, Ogasawara T, Nakai A, Kasuya T. Effect of rotor aspect ratio and solidity on a straight-bladed vertical axis wind turbine in three-dimensional analysis by the panel method. Energy. 2017;121:1-9.
Li Q, Maeda T, Kamada Y, Murata J, Furukawa K and Yamamoto M. The influence of flow field and aerodynamic forces on a straight-bladed vertical axis wind turbine. Energy. 2016;111:260-271.
Zanon A, Giannattasio P and Simão Ferreira CJ. Wake modelling of a VAWT in dynamic stall: impact on the prediction of flow and induction fields. Wind Energy. 2015;18:1855-1874.
Guo Y, Liu L-q, Li Y, Xiao C-s and Tang Y-g. The surge-heave-pitch coupling motions of the Φ-type vertical axis wind turbine supported by the truss Spar floating foundation. Journal of Hydrodynamics. 2018;31:669-681.
Lei H, Zhou D, Bao Y, Chen C, Ma N and Han Z. Numerical simulations of the unsteady aerodynamics of a floating vertical axis wind turbine in surge motion. Energy. 2017;127:1-17.
Li Q, Maeda T, Kamada Y, Murata J, Furukawa K and Yamamoto M. Measurement of the flow field around straight-bladed vertical axis wind turbine. Journal of Wind Engineering and Industrial Aerodynamics. 2016;151:70-78.
Mendoza V, Bachant P, Ferreira C and Goude A. Near-wake flow simulation of a vertical axis turbine using an actuator line model. Wind Energy. 2019;22:171-188.
Yang Y, Guo Z, Zhang Y, Jinyama H and Li Q. Numerical investigation of the tip vortex of a Straight-bladed Vertical Axis Wind Turbine with double-blades. Energies. 2017;10:1-18.
Ma N, Lei H, Han Z, Zhou D, Bao Y, Zhang K, Zhou L and Chen C. Airfoil optimization to improve power performance of a high-solidity vertical axis wind turbine at a moderate tip speed ratio. Energy. 2018; 150:236-252.
Yang Y, Guo Z, Song Q, Zhang Y and Li Q. Effect of blade pitch angle on the aerodynamic characteristics of a straight-bladed vertical axis wind turbine based on experiments and simulations. Energies. 2018;11:1-15.
Elsakka MM, Ingham DB, Ma L and Pourkashanian M. CFD analysis of the angle of attack for a vertical axis wind turbine blade. Energy Conversion and Management. 2019;182:154-165.
Hara Y, Horita N, Yoshida S, Akimoto H and Sumi T. Numerical analysis of effects of arms with different cross-sections on straight-bladed Vertical Axis Wind Turbine. Energies. 2019;12:1-24.
Ismail MF and Vijayaraghavan K. The effects of aerofoil profile modification on a vertical axis wind turbine performance. Energy. 2015;80:20-31.
Lositaño ICM and Danao LAM. Steady wind performance of a 5 kW three-bladed H-rotor darrieus vertical axis wind turbine (VAWT) with cambered tubercle leading edge (TLE) blades. Energy. 2019;175: 278-291.
Kim D and Gharib M. Efficiency improvement of straight-bladed vertical-axis wind turbines with an upstream deflector. Journal of Wind Engineering and Industrial Aerodynamics. 2013;115: 48-52.
Kirke BK and Lazauskas L. Limitations of fixed pitch Darrieus hydrokinetic turbines and the challenge of variable pitch. Renewable Energy. 2011;36:893-897.
Zhang Y, Li Q, Zhu X, Song X, Cai C, Guo Z. Wind tunnel experiments and numerical study on performance characteristics of an H-type vertical axis wind turbine in the spanwise direction, Journal of Thermal Science. 2021;30(3):758-771.
Bangga G, Dessoky A, Wu Z, Rogowski K, Hansen MOL. Accuracy and consistency of CFD and engineering models for simulating vertical axis wind turbine loads. Energy. 2020;206:1-24.
Zhong J, Li J,Guo P, Wang Y. Dynamic stall control on a vertical axis wind turbine aerofoil using leading-edge rod. Energy, 2019;174:246-260.
Cai C, Zuo Z, Morimoto M, Maeda T, Kamada Y, LiuS. Two-step stall characteristic of an airfoil with a single leading-edge protuberance. AIAA Journal. 2018;56:64-77.
Abstract View: 117 times
PDF Download: 33 times