%0 Journal Article %A P. Ploumhans %A G. S. Winckelmans %A J. K. Salmon %T Vortex particles and tree codes: I. flows with arbitrary crossing between solid boundaries and particle redistribution lattice; II. vortex ring encountering a plane at an angle. %J ESAIM. Proceedings %D 1999 %P 335-348 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/proc:1999031/ %R 10.1051/proc:1999031 %G en %F EP_1999_7_a30