La présente étude porte sur la simulation du remplissage isotherme des moules en procédé RTM, en adoptant la méthode CV/FEM et VOF, avec prise en compte de la présence d’obstacles couplée à l’effet de la variation de l’épaisseur et des couches du renfort. Les codes développés ont pour objectif d’optimiser le positionnement des points d’injection, des évents et déterminer les pressions d’injection optimales pour minimiser les temps de cycle. Ces codes utilisent un mailleur propre à l’équipe permettant de discrétiser le domaine en éléments triangulaires non structurés avec possibilité de raffinement local et d’inclusion d’inserts.
This paper contains two short presentations related to the mathematical modeling of Cancer. The first part intends to introduce a tumour-immune system interaction, which describes the early dynamics of cancerous cells, competing with the immune system, potentially leading to either the elimination of tumoral cells or to the viability of a solid tumor. The second part of the paper addresses the case where a solid tumor has grown enough to initiate angiogenesis, a process which equips the tumor with its own blood network. Nash game theory is used to model the interaction between activators and inhibitors of the angiogenesis process.
This study was carried out within the framework of a research project entitled «CSCW and Simulation: Toward a group-oriented platform of analysis and design of production systems». The object of this project is to analyze the cooperation practices during the conduct of a project of modeling and simulation of a production system, then to specify and develop a simulation groupware with an aim of adding the group dimension to simulation tools. In this paper, we define and we present a modeling of cooperation interactions in the conduct of cooperative simulation project using the Denver Model. We illustrate our approach by presenting our experiment with BSCW system to validate our modeling.
