Poisson equation

*To*: mathgroup at smc.vnet.net*Subject*: [mg64266] Poisson equation*From*: Uli Wuerfel <uli.wuerfel at fmf.uni-freiburg.de>*Date*: Wed, 8 Feb 2006 06:29:50 -0500 (EST)*Organization*: InterNetNews at News.BelWue.DE (Stuttgart, Germany)*Sender*: owner-wri-mathgroup at wolfram.com

Dear Experts, I am tying to solve the Poisson equation in cylindrical coordinates: Laplace Operator[phi]==0 I tried to do this with the boundary conditions being that the potential phi euqals 1 on the bottom and the walls of the cylinder. Unfortunately, Mathematica does not accept it. I also tried to make it time-dependent and taking then the steady-state value of the solution but this either does not work. Must be something wrong in general. Could you please help? Regards, Uli