Abstract
This paper presents the results of an experimental investigation and a three dimensional numerical analysis of the transient aerodynamic phenomena occurring in the innovative modification of classic Savonius wind turbine. An attempt to explain the increased efficiency of the innovative design a comparison with the traditional solution is undertaken. A vorticity measure based on the integral of the velocity gradient tensor second invariant is proposed in order to evaluate and compare designs. The discussed criterion is related to the vortex structures and energy dissipation. These structures are generated by the rotor and may affect the efficiency.
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Afungchui, D., Kamoun, B., Helali, A., Djemaa, A.B.: The unsteady pressure field and the aerodynamic performances of Savonius rotor based on the discrete vortex method. Renew. Energy 35, 307–313 (2010)
Altan, B.D., Atilgan, M., Ozdamar, A.: An experimental study on improvement of a Savonius rotor performance with curtaining. Exp. Thermal Fluid Sci. 32, 1673–1678 (2008)
Blackwell, B.F., Sheldahl, R.E., Feltz, L.V.: Wind tunnel performance data for two- and three-bucket Savonius rotor. Sandia Laboratories Report SAND 76-0131 (1977). http://prod.sandia.gov/techlib/accesscontrol.cgi/1976/760131.pdf
Chong, M.S., Perry, A.E., Cantwell, B.J.: A general classification of threedimensional flow fields. Phys. Fluids A 2, 765–777 (1990)
Doerffer, P.: International patent application PCT/PL2012/000125 and national patent application
Fujisawa, N., Gotoh, F.: Visualisation study of the flow in and around a Savonius rotor. Exp. Fluids 12, 407–412 (1992)
Le Gourières, D.: Énergie éolienne, Théorie, conception et calcul pratique des installations. Eyrolles (1980)
Kamoji, M.A., Kedare, S.B., Prabhu, S.V.: Experimental investigations on single stage, two stage and three stage conventional Savonius rotor. Int. J. Energy Res. 32, 877–895 (2008)
Kludzinska, K., Swirydczuk, J.: Unsteady flow through the gap of Savonius turbine rotor European congress on computational methods in applied sciences and engineering (ECCOMAS 2012), Vienna, Austria (2012)
Kludzinska, K., Swirydczuk, J.: A numerical analysis of the unsteady flow round a Savonius turbine XX polish fluid mechanics conference, Gliwice (2012)
Menet, J.: A double-step Savonius rotor for local production of electricity: A design study. Renew. Energy 29, 1843–1862 (2004)
Menet, J.: Prediction of the aerodynamics of a new type of vertical axis wind turbine: the reverse bladed rotor. In: Proceedings of the european wind energy conference (2008)
Mohamed, M.H., Janiga, G., Pap, E., Thevenin, D.: Optimisation of Savonius turbines using an obstacle shielding the returning blade. Renew. Energy 35, 2618–2626 (2010)
Nakajima, M., Iio, S., Ikeda, T.: Performance of double-step Savonius rotor for environmentally friendly hydraulic turbine. J. Fluid Sci. Technol. 3, 410–419 (2008)
Ogawa, T.: Theoretical study on the flow about Savonius rotor. ASME J. Fluids Eng. 106, 85–91 (1984)
Saha, U.K., Thotla, S., Maity, D.: Optimum design configuration of Savonius rotor through wind tunnel experiments. J. Wind Eng. Ind. Aerodyn. 96, 1359–1375 (2008)
Swirydczuk, J., Doerffer, P., Szymaniak, M.: Unsteady flow through the gap of Savonius turbine rotor. Task Quarterly 15(1), 59–70 (2011)
Swirydczuk, J., Kludzinska, K.: Improving Savonius rotor performance by shaping its blade edges. Herald of aeroenginebuilding, No 2, pp. 86–90, ISSN 1727-0219 (2012)
Tesch, K.: On invariants of fluid mechanics tensors. Task Quarterly 17(3–4), 1000–1008 (2013)
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Tesch, K., Kludzinska, K. & Doerffer, P. Investigation of the Aerodynamics of an Innovative Vertical-Axis Wind Turbine. Flow Turbulence Combust 95, 739–754 (2015). https://doi.org/10.1007/s10494-015-9615-3
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DOI: https://doi.org/10.1007/s10494-015-9615-3