Numeric simultions allow the study of physical phenomenon that are impossible or diffcult to realize in the real woeld. As an example, it is ont concievable to cause an atomic explosion or an earthquake for exploring the effects on a building or a flood barrier. To be realistic, this kind of simulation (waves propagation), must take into account all the caracteristics of the domain where it takes palce, and more aprticulary the tri-dimensional aspect. Therefor, numericians need not only a three-dimensional model of the domain, but also a meshing of this domain. In the case we ue finite differneces based methods, this meshing must be hexahedral and regular.
展开▼
