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| Fourestier, Gaspard; Santagostini, Timothée; Le Boulluec, Marc; Magaldi, Philippe; Scolan, Yves-marie. |
| One type of low head hydropower plant is studied. This solution, based on a bathtub vortex, is called the gravitational vortex hydropower. It consists on a turbine placed at the center of the vortex which allows to harvest the kinetic energy [1]. As a first step, the bathtub vortex is studied without the turbine, in the supercritical flow regime. A numerical model has been performed using OpenFOAM 2.2.2. A two phases approach, using the volume of fluid method has been chosen. Simulations are mostly done without any modelling of turbulent phenomena (laminar model). In order to validate the numerical approach, an experimental campaign is carried out. The experimental data are compared qualitatively and quantitatively to the values extracted from the... |
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| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00392/50354/51053.pdf |
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| Le Boulluec, Marc; Ohana, Jeremy; Chalony, Sebastien; Tancray, Aurelien; Le Gall, Clément; Fourestier, Gaspard; Santagostini, Timothée; Ercolanelli, Julien; Cueff, Quentin; Raoul, Samuel. |
| A method for reducing the roll of a ship consists in placing a tank whose liquid content is animated by free surface sloshing motions. The dynamic coupling with the vessel is studied experimentally at reduced model in a test tank. Numerical modeling under perfect fluid and viscous fluid assumptions make it possible to approach the measured responses. |
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| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00392/50352/51049.pdf |
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