Bertrand, Olivier

Dominguez, Favio

Girard, Caroline

Rebai, Adlane

Zanette, Jerönnimo

English

Hydraulic Engineering Repository

Conference Paper, Published VersionBertrand, Olivier; Rebai, Adlane; Girard, Caroline; Zanette, Jerönnimo;Dominguez, FavioDevelopment of a three-dimensional model of a vertical-axis and transverse-flow hydrokinetic turbineZur Verfügung gestellt in Kooperation mit/Provided in Cooperation with:TELEMAC-MASCARET Core GroupVerfügbar unter/Available at: https://hdl.handle.net/20.500.11970/104336Vorgeschlagene Zitierweise/Suggested citation:Bertrand, Olivier; Rebai, Adlane; Girard, Caroline; Zanette, Jerönnimo; Dominguez, Favio(2015): Development of a three-dimensional model of a vertical-axis and transverse-flowhydrokinetic turbine. In: Moulinec, Charles; Emerson, David (Hg.): Proceedings of the XXIITELEMAC-MASCARET Technical User Conference October 15-16, 2032. Warrington: STFCDaresbury Laboratory. S. 208-212.Standardnutzungsbedingungen/Terms of Use:Die Dokumente in HENRY stehen unter der Creative Commons Lizenz CC BY 4.0, sofern keine abweichendenNutzungsbedingungen getroffen wurden. Damit ist sowohl die kommerzielle Nutzung als auch das Teilen, dieWeiterbearbeitung und Speicherung erlaubt. Das Verwenden und das Bearbeiten stehen unter der Bedingung derNamensnennung. Im Einzelfall kann eine restriktivere Lizenz gelten; dann gelten abweichend von den obigenNutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte.Documents in HENRY are made available under the Creative Commons License CC BY 4.0, if no other license isapplicable. Under CC BY 4.0 commercial use and sharing, remixing, transforming, and building upon the materialof the work is permitted. In some cases a different, more restrictive license may apply; if applicable the terms ofthe restrictive license will be binding.22nd Telemac & Mascaret User Club STFC Daresbury Laboratory, UK, 13-16 October, 2015    (b)        (c)        Figure 10.  Computed velocity contours obtained by TELEMAC and comparison of a velocity profile (URANS in black). (a) LT = 4 m ; (b) LT = 6 m ; (c) LT = 10 m IV. CONCLUSION The work presented in this article was carried out in the framework of the HYDROFLUV research project, which aims at developing a methodology and tools for evaluating the impacts of a river turbine at a production site. Coupling the various modelling resources provides a means of comprehending the river turbine within its environment. By using a URANS approach, whereby the geometric surfaces of the turbine are represented in the mesh, we can determine the forces exerted on the machine’s rotor and stator with a high degree of precision. The integration of these terms to the TELEMAC conservation equations without faithfully representing its geometry, larger-scale three-dimensional simulations are validated on the basis of academic cases in which the two models are compared. The modelling and simulation times are obviously much longer with the first approach. Applying the TELEMAC model to the pilot site in the river Loire provides a means of simulating several river discharges with the turbine operating [3]. The current fields obtained and hydraulic impact maps give an indication of how well the turbine is accepted by its natural environment.  Figure 11.  Picture of the hydrokinetic turbine, raised on the barge, in the river Loire at Orléans. A river turbine has been now installed in the river Loire in Orléans since autumn 2014 (Fig. 11). This full-size prototype is used to test the various technological options on a scale of several years’ operation, and provides some initial feedback. We are currently studying resources for working backwards and calculating production capacity in order to optimize turbines location of a river turbine farm and the layout of the individual turbines. ACKNOWLEDGEMENT This work was carried out as part of the HYDROFLUV project approved by the Tenerrdis, DERBI and DREAM competitiveness clusters, with funding granted in the framework of the 15th Fonds Unique Interministériel (FUI) programme. The HYDROFLUV project partners are Hydroquest, FOC Transmissions, ERNEO, Biotope, EDF, Artelia and the LEGI laboratory. REFERENCES [1] Achard, J.-L., Projet Harvest : Hydrolienne à Axe de Rotation Vertical Stabilisé, Séminaire sur les Energies Propres et Renouvelables. 2006 [2] Aumelas, V., Modélisation des hydroliennes à axe vertical libres ou carénées : développement d’un moyen expérimental et d’un moyen numérique pour l’étude de la cavitation. Université de Grenoble, Thèse 2011 [3] O. Bertrand, L. Duron, C. Girard, J. Zanette, F. Dominguez, Numerical modelling of vertical-axis and transverse-flow hydrokinetic turbine in the river Loire, E-proceedings of the 36th IAHR World Congress 28 June – 3 July, 2015, The Hague, the NetherlandsHervouet J.-M., Hydrodynamics of Free Surface Flows – modelling with the finite element method. WILEY 2007 [4] Dellinger N., Instrumentation d'un tunnel hydrodynamique pour la caractérisation de turbines a flux transverse. Université de Grenoble, Thèse 2011 [5] F. Dominguez, J.-L. Achard, J. Zanette and Ch. Corre, A BEM-RANS approach for the fast power output prediction of ducted vertical-axis water turbines, Proceedings of the 11th European Wave and Tidal Energy Conference 6-11th sept 2015, Nantes, France [6] Hervouet J.-M., Hydrodynamics of Free Surface Flows – modelling with the finite element method. WILEY 2007  

Development of a three-dimensional model of a vertical-axis and transverse-flow hydrokinetic turbine

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Development of a three-dimensional model of a vertical-axis and transverse-flow hydrokinetic turbine

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