Volume 10, 2008 - 2009

1. Simulation du remplissage des moules par la méthode des éléments Finis / volume contrôle dans les procédés RTM

J. Samir ; M. Hattabi ; J. Echaabi ; A. Saouab ; C.H. Park.
In the course of this study, the simulation of the resin flow in the RTM process is developed by the control volume finite element method (CVFEM) coupled with the equation of the free surface location. This location is made by means of the so called "Volume of Fluid" methods or VOF. Thus, the position of the flow front, the time-lapse and the rate of the non saturated zone are calculated at every step. Our results will be compared with the experimental and analytical models in the literature. On the whole, our study is concerned with the simulation of the thermally insulated filling of moulds in RTM process while adopting the CVFEM and VOF method, taking into account the presence of obstacles, coupled with the thickness variation effect and the reinforcement coats.

2. Two Short Presentations related to Cancer Modeling

A. Habbal ; P.-E. Jabin.
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.

3. Modélisation des interactions de coopération dans la conduite d'un projet de simulation

Ahmed Korichi ; Brahim Belattar.
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.