Investigation and Optimization on Effective Parameters of a H-Rotor Darrieus Wind Turbine, Using CFD Method

Document Type : Research Article


1 Renewable Energies and Environment Department, Faculty of New Sciences and Technologies, University of Tehran, Tehran, I.R. IRAN

2 Hydrogen and fuel cell laboratory, Faculty of New Sciences and Technologies, University of Tehran, Tehran, I.R. IRAN

3 Turbomachinery Research Laboratory, Department of Energy Conversion, School of Mechanical Engineering, Iran University of Science and Technology, Tehran, I.R. IRAN

4 Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, I.R. IRAN


The present study conducted a 2-dimensional numerical simulation using the Computational Fluid Dynamics (CFD) method for a Darrieus Vertical Axis Wind Turbine (VAWT). This study aims to investigate the effect of changing design and operational parameters on the performance of the Darrieus turbine. Power coefficient and torque are calculated to observe the turbine's performance, and their values ​​are compared in the different Tip Speed Ratios (TSR) and azimuth angles, respectively. Therefore, effective parameters such as free wind velocity, chord length, blade number, and airfoil profile are investigated. The results show that increasing the inlet velocity and chord length led to an increase in the efficiency of the turbine and formation of intense wake flow around the blades; however, increasing the number of turbine blades in small TSRs shows better performance, while when the rotor rotations number increases, the low solidity turbine with a lower number of blades has more efficiency. Also, the NACA0021 airfoil profile had higher Cp than other airfoil profiles and augments the wake flow downstream. An optimization method is provided to find the optimal operating and geometric conditions to achieve a higher value of Cp. The results show that the highest efficiency of Darrieus VAWT is achieved with an inlet velocity of 12 (m/s) and blade chord length of 0.2 (m) for a three-bladed turbine at TSR=2.5. It is also shown that Darrieus VAWT operates with lift force and needs an initial torque to start working by increasing the values ​​of Cp in the primary TSRs; the turbine's need for initial torque decreases.


Main Subjects

[1] Dixon S.L., Hall C.A., "Fluid Mechanics and Thermodynamics of Turbomachinery", Seventh edition. Amsterdam ; Boston: Butterworth-Heinemann is an imprint of Elsevier, 2014.
[2] Eriksson S., Bernhoff H., Leijon M., Evaluation of Different Turbine Concepts for Wind Power, Renewable and Sustainable Energy Reviews, 12(5): 1419–1434 (2008).
[4] Khudri Johari M., Azim M., Jalil A., Faizal Mohd Shariff M., Comparison of Horizontal Axis Wind Turbine (HAWT) and Vertical Axis Wind Turbine (VAWT), IJET, 7(4.13): 74 (2018).
[5] Pinar Pérez J.M., García Márquez F.P., Tobias A., Papaelias M., Wind Turbine Reliability Analysis, Renewable and Sustainable Energy Reviews, 23: 463–472 (2013).
[7] Sagharichi A., Zamani M., Ghasemi A., Effect of Solidity on the Performance of Variable-Pitch Vertical Axis Wind Turbine, Energy, 161: 753–775 (2018).
[8] Aslam Bhutta M.M., Hayat N., Farooq A.U., Ali Z., Jamil Sh. R., Hussain Z., Vertical Axis wind Turbine – A Review of Various Configurations and Design Techniques, Renewable and Sustainable Energy Reviews, 16(4): 1926–1939 (2012).
[9] Kumar R., Raahemifar K., Fung A.S., A Critical Review of Vertical Axis Wind Turbines for Urban Applications, Renewable and Sustainable Energy Reviews, 89: 281–291.
[13] Jin X., Zhao G., Gao K., Ju W., Darrieus Vertical Axis Wind Turbine: Basic Research Methods, Renewable and Sustainable Energy Reviews, 42: 212–225 (2015).
[15] Mohan Kumar P., Sivalingam K., Lim T.-C., Ramakrishna S., Wei H., Review on the Evolution of Darrieus Vertical Axis Wind Turbine: Large Wind Turbines, Clean Technol., 1(1): 205–223 (2019)
[16] Singh M.A., Biswas A., Misra R.D., Investigation of Self-Starting and High Rotor Solidity on the Performance of a Three S1210 Blade H-Type Darrieus Rotor, Renewable Energy, 76: 381–387 (2015).
[17] Lanzafame R., Mauro S., Messina M., 2D CFD Modeling of H-Darrieus Wind Turbines Using a Transition Turbulence Model, Energy Procedia, 45: 131–140 (201).
 [18] Qamar S.B,. Janajreh I., A Comprehensive Analysis of Solidity for Cambered Darrieus VAWTs,” International Journal of Hydrogen Energy, 42(30):19420–19431 (2017).
[19] Dol S.S., Khamis A., Abdallftah M.T., Fares M., Shahid S., CFD Analysis of Vertical Axis Wind Turbine with Winglets, 3(1): 9 (2022).
[22] Ghasemian M., Ashrafi Z.N., Sedaghat A., A Review on Computational Fluid Dynamic Simulation Techniques for Darrieus Vertical Axis Wind Turbines, Energy Conversion and Management, 149: 87–100 (2017).
[23] Mohamed M. H., Performance Investigation of H-Rotor Darrieus Turbine with New Airfoil Shapes, Energy, 47(1): 522–530, (2012)
[25] Yousefi Roshan M., Khaleghinia J., Eshagh Nimvari M., Salarian H., Performance Improvement of Darrieus Wind Turbine Using Different Cavity Layouts, Energy Conversion and Management, 246: 114693 (2021).
[26] Paraschivoiu I., Trifu O., Saeed F., “H-Darrieus Wind Turbine with Blade Pitch Control,” International Journal of Rotating Machinery, 2009: 1–7 (2009)
[27] Korprasertsak N., Leephakpreeda T., CFD-Based Power Analysis on Low Speed Vertical Axis Wind Turbines with Wind Boosters, Energy Procedia, 79: 963–968 (2015).
[28] Akhlagi M., Ghafoorian F., Mehrpooya M., Sharifi Rizi M., Effective Parameters Optimization of a Small Scale Gorlov Wind Turbine, Using CFD Method, Iranian Journal of Chemistry and Chemical Engineering. Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2022.
[29] Divakaran U. Kishore Velamati R., Ramesh A., Effect of Wind Speed on the Performance of Troposkein Vertical Axis Wind Turbine, I.J.R.E.R., 9(3):  (2019)
[31] Gosselin R., Dumas G., Boudreau M., Parametric Study of H-Darrieus Vertical-Axis Turbines Using CFD Simulations, Journal of Renewable and Sustainable Energy, 8(5): 053301, 2016.
[32] Chong W.-T., et al., Cross Axis Wind Turbine: Pushing the Limit of Wind Turbine Technology with Complementary Design, Applied Energy, 207: 78–95 (2017). 
[33] Arpino F., Cortellessa G., Dell’Isola M., Scungio M., Focanti V., Rotondi M., CFD Simulations of Power Coefficients for an Innovative Darrieus Style Vertical Axis wind Turbine with Auxiliary Straight Blades, Journal of Physics, 9.
[34] Hoseinzadeh S., A Detailed Experimental Airfoil Performance Investigation Using an Equipped Wind Tunnel, Flow Measurement and Instrumentation, 6: (2020).
[35] Hoseinzadeh S., Sohani A., Heyns S., Comprehensive Analysis of the Effect of Air Injection on the Wake Development of an Airfoil, Ocean Engineering, 220: 108455 (2021).
[36] Bahrami A., Hoseinzadeh S., Heyns P.S., Mirhosseini S.M., Experimental Investigation of Co-Flow Jet’s Airfoil Flow Control by Hot Wire Anemometer, Review of Scientific Instruments, 90(12): 125107 (2019)
[39] Chen Y.,  et al., A Shape Optimization of ϕ-Shape Darrieus Wind Turbine under a Given Range of Inlet Wind Speed, Renewable Energy, 159: 286–299 (2020).
[40] Moghimi M. Motawej H., Developed DMST Model for Performance Analysis and Parametric Evaluation of Gorlov Vertical Axis Wind Turbines, Sustainable Energy Technologies and Assessments, 37: 100616 (2020)
[42] Moghimi M.  Motawej H., Investigation of Effective Parameters on Gorlov Vertical Axis Wind Turbine, Fluid Dyn, 55(3): 345–363 (2020)
[43] He J., et al., CFD Modeling of Varying Complexity for Aerodynamic Analysis of H-Vertical Axis wind turbines, Renewable Energy, 145: 2658–2670 (2020)
[44] Hoseinzadeh S., Garcia D.A., Numerical Analysis of Thermal, Fluid, and Electrical Performance of a Photovoltaic Thermal Collector at New Micro-Channels Geometry,” Journal of Energy Resources Technology, 144 (6): 062105 (2022)
[45] Jordaan H., Stephan Heyns P., Hoseinzadeh S., Numerical Development of a Coupled One-Dimensional/Three-Dimensional Computational Fluid Dynamics Method for Thermal Analysis With Flow Maldistribution, Journal of Thermal Science and Engineering Applications, 13(4): 041017 (2021)
[46] Edwards J., Durrani N., R Howell., Qin N., "Wind Tunnel and Numerical Study of a Small Vertical Axis Wind Turbine", in 46th AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, (2008)
[47] Alaimo A., Esposito A., Messineo A., Orlando C., Tumino D., 3D CFD Analysis of a Vertical Axis Wind Turbine, Energies, 8(4): 3013–3033 (2015).
[49] Bourguet R., Martinat G., Harran G., Braza M., Aerodynamic Multi-Criteria Shape Optimization of VAWT Blade Profile by Viscous Approach, in Wind Energy, J. Peinke, P. Schaumann, and S. Barth, Eds. Berlin, Heidelberg: Springer Berlin Heidelberg, 215–219 (2007).
[50] Lim Y.C., Chong W.T., Hsiao F.B., Performance Investigation and Optimization of a Vertical Axis Wind Turbine with the Omni-Direction-Guide-Vane, Procedia Engineering, 67: 59–69 (2013).
[51] Saryazdi       S.M.E. Boroushaki M., 2D Numerical Simulation and Sensitive Analysis of H-Darrieus Wind Turbine, IJRED, 7 (1): 23 (2018)
[53] Ranjbar M. H. et al., Power Enhancement of a Vertical Axis Wind Turbine Equipped with an Improved Duct, Energies, 14 (18): 5780 (2021)
[54] Raciti Castelli M., Ardizzon G., Battisti L., Benini E., Pavesi G., Modeling Strategy and Numerical Validation for a Darrieus Vertical Axis Micro-Wind Turbine, in "Volume 7: Fluid Flow, Heat Transfer and Thermal Systems", Parts A and B, Vancouver, British Columbia, Canada, (2010), 409–418.
[55] Siddiqui M.S., Rasheed A., Kvamsdal T., Tabib M., Effect of Turbulence Intensity on the Performance of an Offshore Vertical Axis Wind Turbine, Energy Procedia, 80: 312–320, 2015.
[56] Stergiannis N., Lacor C., Beeck J.V., Donnelly R., CFD Modelling Approaches Against Single Wind Turbine Wake Measurements Using RANS, J. Phys.: Conf. Ser., 753: 032062,(2016)
[57] Liamis N. Lebert Y., "Implementation of a Low Reynolds k-Epsilon Turbulence Model in a 3D Navier-Stokes Solver for Turbomachinery Flows", in 31st Joint Propulsion Conference and Exhibit, San Diego,CA,U.S.A., (1995).
[59] Mao Z., Tian W., Effect of the Blade Arc Angle on the Performance of a Savonius Wind Turbine, Advances in Mechanical Engineering, 7(5): 168781401558424 (2015).
[60] Said M.S.M., Ghani J.A., Kassim M.S., Tomadi S.H., Haron C., "Comparison between Taguchi Method and Response Surface Methodology (RSM) in Optimizing Machining Condition", Proceeding of 1st International Conference on Robust Quality Engineering, (2013).