Nous allons maintenant aborder la description d'un outil qui a été développé tout au long de cette thèse Ce développement a été motivé dans l'idée de simplifier la description des géométries dans les codes Feel++.T o u t e sl e sf o n c t i o n n a l i t é sd é c r i t e sd a n sc e t t e partie reposent sur l'implémentation d'une classe C++ nommée GeoTool. Elle propose la définition de plusieurs géométries de base qui sont caractérisées par quelques paramètres pratiques. Nous pouvons aussi interagir entre ces objets pour créer des formes plus complexes . Les opérations disponibles sont l'union et la différence. Nous montrerons également l'implémentation d'une géométrie de base. Cette description a pour but de montrer l'effort de développement qui a été fait dans la classe GeoTool pour permettre l, Celle-ci nous permet ensuite de générer le maillage associé à la géométrie ,
r o n sl e sf o r m e sc l a s s i q u e st e l l e sq u el e st r i a n g l e s ,q u a d r a n g l e s ,d i vers autres polygones, cercles, hexaèdres, sphères, cylindres, etc. D'autres figures plus spécifiques sont aussi présentes. Pour illustrer cet environnement, nous commençons par présenter le code correspondant à la définition d ,
Nous avons ensuite la figure 10.5 qui représente la même simulation, mais avec les conditions aux limites de sortie basées sur le modèle de Windkessel. Ces résultats utilisent la configuration (1) Nous constatons que le comportement de la simulation est assez similaire pour le début de la propagation de l'onde de pression ,
SIMULATION DES ÉCOULEMENTS SANGUINS un comportement non physiologique apparaissant à l'entrée (figures 10.18(c) et 10, p.18 ,
onde de pression est réfléchie par l'anévrisme et alors une grande partie de celle-ci revient vers l'entrée de l'écoulement. Il faut donc trouver une condition d'entrée plus élaborée pour éviter d'avoir ces perturbations. On peut également dire que le phénomène de masse ajoutée est très présent dans cette application ,
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