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Numerical Simulation of the Rotating Vortex Rope with Code_Saturne
Department of Hydraulics, Hydraulic Machinery and Environmental Engineering, University POLITEHNICA of Bucharest, Bucharest, Romania.
Department of Hydraulics, Hydraulic Machinery and Environmental Engineering, University POLITEHNICA of Bucharest, Bucharest, Romania.
Department of Hydraulics, Hydraulic Machinery and Environmental Engineering, University POLITEHNICA of Bucharest, Bucharest, Romania.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0001-7599-0895
2019 (English)In: Proceedings of 2019 International Conference on ENERGY and ENVIRONMENT (CIEM), IEEE, 2019, p. 152-156Conference paper, Published paper (Other academic)
Abstract [en]

The paper presents numerical simulations of the rotating vortex rope (RVR) inside a Francis turbine draft tube. The computational fluid dynamics (CFD) calculations were carried out using the Code_Saturne software. The geometry of the turbine was obtained from the Francis-99 workshops. The mesh files provided for the Francis-99 workshop II were modified in the Salome's mesh module, SMESH, in order to comply with the Code_Saturne mesh quality criteria. First, steady state numerical simulations using the Frozen Rotor turbomachinery model were performed at best efficiency point (BEP) and part load (PL) on a reduced model of the Francis-99 turbine. The reduced geometry consisted in one runner blade, one splitter blade and part of the draft tube. The post-processing part was carried out in ParaVIEW. The results were validated against experimental data. Secondly a numerical unsteady simulation was performed at PL in the draft tube of the Francis-99 turbine to capture the RVR.

Place, publisher, year, edition, pages
IEEE, 2019. p. 152-156
Series
International Conference on ENERGY and ENVIRONMENT (CIEM)
Keywords [en]
Code_Saturne, Francis-99, part load, RVR, Salome
National Category
Fluid Mechanics and Acoustics
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-78693DOI: 10.1109/CIEM46456.2019.8937583Scopus ID: 2-s2.0-85078248055OAI: oai:DiVA.org:ltu-78693DiVA, id: diva2:1426705
Conference
2019 International Conference on ENERGY and ENVIRONMENT (CIEM), 17-18 October, 2019, Timisoara, Romania
Note

ISBN för värdpublikation: 978-1-7281-1532-0, 978-1-7281-1533-7

Available from: 2020-04-27 Created: 2020-04-27 Last updated: 2020-04-27Bibliographically approved

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Cervantes, Michel J.

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