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FVCOM meshes #24

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FVCOM meshes#24

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@poplarShift
poplarShift
opened on Mar 12, 2026

Hi @kacpnowak, thanks for the package! I'd love to try it out on FVCOM meshes. As far as I can see, TriangularFilter works for velocities defined on mesh nodes, whereas in FVCOM it is defined on the cells.

What would be the easiest starting point to adapt the implicit filter to that format?

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  1. kacpnowak commented on Mar 12, 2026

    @kacpnowak
    kacpnowak
    on Mar 12, 2026
    Collaborator

    Hi @poplarShift, currently there are two options:

    • interpolate from elements to nodes:
    from implicit_filter import transform_velocity_to_nodes

uxn, vyn = transform_velocity_to_nodes(ux, vy, filter)

    The result of this approach is shown in example notebook

    • email me at kacper.nowak@awi.de and I can send you experimental version that works directly on cells.

  2. poplarShift commented on Mar 18, 2026

    @poplarShift
    poplarShift
    on Mar 18, 2026
    Author

    Thanks! For the record, transforming to nodes works nicely, but then of course the filtered velocities are also on nodes, meaning I cannot calculate e.g. vorticity the normal (FVCOM) way. Sent you an email.

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