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Date: Mon, 15 May 2023 07:52:32 +0200
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Le 14/05/2023 à 18:55, Julien Arlandis a écrit :
> La périodicité en x, dépend tout simplement du pas du maillage !
> Tous mes artefacts viennent de là...

oui, c'est ce qu'on appelle l'aliasing géométrique.

-- 
Fabrice