Upcoming talks

December 16, 2019
  • 14:00 :

    Orateur : Matthieu Ancelin

    Linear potential flow simulation of wave energy converters

    The linear potential flow model is one of the simplest models available
    to describe the interaction between water waves and a floating body, for
    example for the design of Wave Energy Converters (WECs).
    It takes the form of a Laplace equation that can be solved numerically
    using the Boundary Elements Method (BEM).

    The main goal of the present work is the assessment and the enhancement
    of the only open source BEM solver for linear potential flow: Nemoh,
    released in 2014 by the École Centrale de Nantes [1].
    Most of the theory and implementation of this code dates back from the
    1970s and 1980s and it would benefit from newer techniques and tools.
    To this end, a new more modular and better documented implementation of
    the code has been published as a Python package [2].
    It allows to test more advanced methods to improve the performance of
    the code, such as Hierarchical Matrices or their combination with the
    local symmetries of the body.

    Finally, some examples of applications to WECs will be briefly presented
    [3].

    [1] Babarit and Delhommeau, Theoretical and numerical aspects of the
    open source BEM solver NEMOH, Proceedings of the 11th European Wave and
    Tidal Energy Conference (EWTEC 2015).
    [2] Ancellin and Dias, Capytaine: a Python-based linear potential flow
    solver, Journal of Open Source Software, 4(36), 1341, 2019
    [3] Ancellin et al., Far-field maximal power absorption of a bulging
    cylindrical wave energy converter: preliminary numerical results, Actes
    des Journées de l'Hydrodynamique, 2018.  

January 10, 2020
  • 10:00 :

    Orateur :


 

Slides of previous talks (link to a protected page)

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