The stochastic vortex simulation of an unsteady viscous flow in a multiconnected domain

Vortex methods applied to flows in multiconnected domains are studied. The objective of the work is to construct a vortex method which eliminates the possibility of non-physical solutions in the pressure fields calculated a posteriori from the velocity and vorticity fields. Application is made in the case of an annular domain. It is shown that certain additional constrains concerning the production of vorticity on the boundary have to be imposed.