This paper deals with a numerical method based on the simulation of a 2D tank, for
unsteady and laminar two - dimensional incompressible viscous flow. Navier-Stokes and
Continuity equations are solved in a fluid domain. These equations are discreti
zed by
Finite Differences Method. The pressure is obtained by solving a Poisson equation dealing
with a fictitious velocity field. The Poisson equation is solved by a Finite Volume Method.
The grid is refined by a new method “Adaptive Selective Mesh Refinement” called
“ASMR”.