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The design of wind turbines has been continually evolving to enhance aerodynamic efficiency, which is crucial for improving energy conversion and reducing operational costs. One promising technique is the application of the Co-Flow Jet (CFJ) method, which utilizes simultaneous blowing and suction to augment aerofoil performance. Despite its potential benefits, the relationship between aerofoil thickness and the resulting improvements in lift and drag coefficients has not been thoroughly explored, especially for the National Renewable Energy Laboratory (NREL) aerofoils commonly used in wind turbine applications. This study utilizes computational fluid dynamics (CFD) simulations in order to investigate the aerodynamic efficiency improvements of the NREL S826, NREL S825, and NREL S818 aerofoils through the application of the CFJ technique. Various configurations with different blowing (B) and suction (S) configurations were tested, including 0.08B-0.7S, 0.08B-0.8S, 0.1B-0.7S, and 0.2B-0.7S configurations. The results demonstrate that the S826-0.2B-0.7S, S825-0.2B-0.7S, and S818-0.08B0.7S configurations yield the most significant enhancements at a common momentum coefficient (Cm) of 0.08. Specifically, there were increases in lift coefficients by about 51.1%, 66.38%, and 109%, and improvements in lift-to-drag ratios by about 11.5%, 14.38%, and 146.18% for the S826-0.2B-0.7S, S825-0.2B-0.7S and S818- 0.08B-0.7S configurations, respectively.
Wydawca
Rocznik
Tom
Strony
218--232
Opis fizyczny
Bibliogr. 26 poz., rys., tab.
Twórcy
- Department of Mechanical Engineering, University of Derna, Derna, Libya
- Department of Mechanical Engineering, Al Azhar University, Cairo, Egypt
autor
- Department of Mechanical Power Engineering, Port Said University, Port Said, Egypt
- elsakka@eng.psu.edu.eg
autor
- Department of Mechanical Engineering, Al Azhar University, Cairo, Egypt
- Department of Mechanical Engineering, Al Azhar University, Cairo, Egypt
Bibliografia
- 1. Abbasi, S., Esmailzadeh Vali, S. 2022. Effects of simultaneous suction and blowing over an aerofoil on flow behavior and aerodynamic coefficients. Iranica Journal of Energy & Environment, 13(4), 424–432.
- 2. Arunraj, R., Logesh, K., Balaji, V., Ravichandran, T., Yuvashree, G.K. 2019. Experimental investigation of lift enhancement by suction-assisted delayed separation of the boundary layer on NACA 0012 aerofoil. International Journal of Ambient Energy, 40(3), 243–247.
- 3. Abul-Ela, S.M., Sayed, I.A., Elrefaie, E.M., Enhancing vertical-axis wind turbine self-starting with distinctive blade airfoil designs, Unpublished manuscript.
- 4. Balaji, K., Wessley, G J.J. 2020. Experimental investigations on the performance of a modified coflow jet aerofoil. IJST, 13, 85.
- 5. Boling, J.S., Zha, G., Zeune, C. 2020. A high-speed, high-efficiency VTOL concept using coflow jet Aerofoil. In AIAA Aviation 2020 Forum 2792.
- 6. Bartl, J., Sagmo, K.F., Bracchi, T., Sætran, L. 2019. Performance of the NREL S826 aerofoil at low to moderate Reynolds numbers—A reference experiment for CFD models. European Journal of Mechanics-B/Fluids, 75, 180–192.
- 7. Elsakka, M.M., Ingham, D.B., Ma, L., Pourkashanian, M. 2021. Comparison of the computational fluid dynamics predictions of vertical axis wind turbine performance against detailed pressure measurements. International Journal of Renewable Energy Research, 11(1), 276–293.
- 8. Goodarzi, M., Fereidouni, R., Rahimi, M. 2012. Investigation of flow control over a NACA 0012 aerofoil by suction effect on aerodynamic characteristics. Canadian Journal on Mechanical Sciences & Engineering, 3(3), 102-109.
- 9. Ibrahim, M.G., Ibrahim, Z.A., Elrefaie, M.E. 2024. Investigation of static and dynamic behaviour of proportional flow control valve provided by pressure compensator. Journal of Al-Azhar University Engineering Sector, 19(72), 56–47.
- 10. James, S.E., Suryan, A., Sebastian, J.J., Mohan, A., Kim, H.D. 2018. Comparative study of boundary layer control around an ordinary aerofoil and a high lift aerofoil with secondary blowing. Computers & Fluids, 164, 50–63.
- 11. Liu, J., Chen, R., You, Y., Shi, Z. 2022. Numerical investigation of dynamic stall suppression of rotor aerofoil via improved co-flow jet. Chinese Journal of Aeronautics, 35(3), 169–184.
- 12. Li, Y., Song, Q., Li, Q.S., Wang, D.L., Wu, X.P. 2021. Experimental investigation of wind loads on wind turbine blade under various turbulent flows.Advances in Structural Engineering, 24(16), 3809–3824.
- 13. Malcolm, D.J., Hansen, A.C. 2006. WindPACT Turbine Rotor Design Study: June 2000–June 2002 (Revised)(No. NREL/SR-500-32495). National Renewable Energy Lab.(NREL), Golden, CO (United States).
- 14. Müller-Vahl, H.F., Strangfeld, C., Nayeri, C.N., Paschereit, C.O., Greenblatt, D. 2015. Control of thick aerofoil, deep dynamic stall using steady blowing. AIAA journal, 53(2), 277–295.
- 15. Ren, Y., Zha, G. 2020. High efficiency integrated propeller-coflow jet aerofoil in cruise. In AIAA Scitech 2020 Forum 0787.
- 16. Sun, X., Xu, Y., Huang, D. 2019. Numerical simulation and research on improving aerodynamic performance of vertical axis wind turbine by co-flow jet. Journal of Renewable and Sustainable Energy, 11(1).
- 17. Tayebi, A., Torabi, F. 2024. Flow control techniques to improve the aerodynamic performance of Darrieus vertical axis wind turbines: A critical review. Journal of Wind Engineering and Industrial Aerodynamics, 252, 105820.
- 18. Wang, L., Alam, M.M., Rehman, S., Zhou, Y. 2022. Effects of blowing and suction jets on the aerodynamic performance of wind turbine aerofoil. Renewable Energy, 196, 52-64.
- 19. Xu, K., Zha, G. 2021, June. High efficiency wind turbine using co-flow jet active flow control. In Turbo Expo: Power for Land, Sea, and Air 84898, V001T40A003. American Society of Mechanical Engineers.
- 20. Xu, K., Zha, G. 2021, June. High efficiency wind turbine using co-flow jet active flow control. In Turbo Expo: Power for Land, Sea, and Air 84898, V001T40A003. American Society of Mechanical Engineers.
- 21. Xu, H.Y., Qiao, C.L., Ye, Z.Y. 2016. Dynamic stall control on the wind turbine aerofoil via a co-flow jet. Energies, 9(6), 429.
- 22. Yuan, R., Chen, R., Li, H., Yang, W., Li, X. 2023. Dynamic reliability evaluation and life prediction of transmission system of multi-performance degraded wind turbine. CMES-Computer Modeling in Engineering & Sciences, 135(3).
- 23. Yousefi, K., Saleh, R., Zahedi, P. 2014. Numerical study of blowing and suction slot geometry optimization on NACA 0012 airfoil. Journal of Mechanical Science and Technology, 28, 1297–1310.
- 24. Zha, G.C., Carroll, B.F., Paxton, C.D., Conley, C.A., Wells, A. 2007. High-performance aerofoil using coflow jet flow control.AIAA journal, 45(8), 2087–2090.
- 25. Zhang, S., Yang, X., Song, B. 2021. Numerical investigation of performance enhancement of the S809 aerofoil and phase VI wind turbine blade using co-flow jet technology. Energies, 14(21), 6933.
- 26. Zhu, C., Qiu, Y., Feng, Y., Wang, T., Li, H. 2022. Combined effect of passive vortex generators and leading-edge roughness on dynamic stall of the wind turbine aerofoil. Energy Conversion and Management, 251, 115015.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-895f9f33-d533-4afd-8ccc-0056b744c2d0
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