Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Grégory Germain"'
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 10, p 1895 (2023)
The cost effective design of tidal turbines requires a good estimation of the loading cycles and their extrema that are related to the unsteady fluctuation of the current velocity. Apart from the ambient turbulence, the main source of velocity fluctu
Externí odkaz:
https://doaj.org/article/9ef3d2d894b54da3886ca4f2707511e0
Publikováno v:
International Marine Energy Journal, Vol 5, Iss 2 (2022)
A transfer function determination method is proposed in this study to predict the unsteady fluctuations of the performance of a tidal turbine model. This method is derived from the Response Amplitude Operator (RAO) applied in the offshore industry to
Externí odkaz:
https://doaj.org/article/a4e3c1811354472b8ff0680b67c7e261
Autor:
Martin Träsch, Anaïs Chambon, Astrid Déporte, Jean-Baptiste Drevet, Grégory Germain, Didier Lemosse, Grégory Pinon
Publikováno v:
International Marine Energy Journal, Vol 3, Iss 3 (2020)
The undulating membrane tidal energy converter is a device that uses the flutter instabilities occurring from the interaction between a slender body and a fluid flow. A new numerical model has been developed using a 2D corotational finite element met
Externí odkaz:
https://doaj.org/article/43774467088341f9825ac97e7a0aaf69
Autor:
Matthew Allmark, Rodrigo Martinez, Stephanie Ordonez-Sanchez, Catherine Lloyd, Tim O’Doherty, Grégory Germain, Benoît Gaurier, Cameron Johnstone
Publikováno v:
Journal of Marine Science and Engineering, Vol 9, Iss 6, p 593 (2021)
Tidal devices are likely to faced with shear flows and subjected to various wave climates. The paper presents an experimental study of the combined impacts of shear profile and irregular waves on the loading of a 1/20th scale device operating at peak
Externí odkaz:
https://doaj.org/article/e52f56e556a349acb8ecef7a4019ac70
Autor:
Benoît Gaurier, Stephanie Ordonez-Sanchez, Jean-Valéry Facq, Grégory Germain, Cameron Johnstone, Rodrigo Martinez, Francesco Salvatore, Ivan Santic, Thomas Davey, Chris Old, Brian Sellar
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 6, p 463 (2020)
This Round Robin Test program aims to establish the influence of the combined wave and current effect on the power capture and performance of a generic tidal turbine prototype. Three facilities offering similar range of experimental conditions have b
Externí odkaz:
https://doaj.org/article/46beaac5abbd44188d8995a1d18ad160
Publikováno v:
VIV and WIO using wake oscillator. Comparison on 2D response with experiments., Pragues : Czech Republic (2008)
Experimental results are used to validate a 2D phenomenological model of the near wake based on Van Der Pol wake oscillators, which is the first one which describes the 2D motion of a cylinder in its transversal plan. In the case of a single cylinder
Externí odkaz:
http://arxiv.org/abs/1002.3216
Autor:
Philippe Druault, Grégory Germain
Publikováno v:
Renewable Energy. 196:1204-1217
Publikováno v:
Renewable Energy (0960-1481) (Elsevier BV), 2022-06, Vol. 193, P. 744-757
Tidal turbine arrays are planed to be installed in areas with strong currents where the flow can often be sheared throughout the water column. To study the shear flow effects on tidal turbine, four vertical velocity profiles are generated in a flume
Publikováno v:
Ocean Engineering. 268:113458
Publikováno v:
Ocean Engineering (0029-8018) (Elsevier BV), 2022-02, Vol. 246, P. 110438 (12p.)
The bubble sweep-down phenomenon around oceanographic research vessels generates acoustic disturbances. The phenomenon can be reproduced on a 1/30 scale ship model in a wave and current circulating flume tank taking into account ship motions. Optical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0edd7b2e56ce360a7fc1f574b9aca236
https://archimer.ifremer.fr/doc/00746/85809/
https://archimer.ifremer.fr/doc/00746/85809/