Newsgroups: sci.physics.plasma
From usenet@rz.uni-karlsruhe.de Mon Jan 30 02:58:25 1995
From: lti45@ltihp71.news.rz.uni-karlsruhe.de (Hartwig Wiesmann)
Organization: University of Karlsruhe, Germany
Subject: High pressure arc lamps

I am modelling high pressure arc lamps with a small anode-kathode distance (< 5mm).
I am using finite elements to calculate numerically the Maxwell equations, the
energy balance of the plasma and the electrodes including non-linear material
functions, radiation, etc. All equations are time independent.
Due to the non-linearity of the equations and the strong response of the material
functions according to small variations of the temperature I have got serious
problems: If I put all these equations together the overall systems becomes
numerically very unstable. Is anyone out there who is working on the same or
related field with whom I may discuss these problems a bit more detailed?

Thanx!!

Hartwig Wiesmann
lti45@lti-gw.etec.uni-karlsruhe.de
Lichttechnisches Institut
Universitaet Karlsruhe

Institute for light technology
University of Karlsruhe
Germany)