Jürgen Fuhrmann

Born 1961 in Erfurt, Germany. Diploma in mathematics from Moscow State University in 1984, Ph.D from Technical University Chemnitz-Zwickau in 1995. Joined the Karl-Weierstraß-Institute Institute of Mathematics of the Academy of Sciences of the GDR in 1984.
Since 1992 with Weierstrass Institute for Applied Analysis and Stochastics (WIAS). Currently, deputy head of the Numerical Analysis group of WIAS. Main field of activity is algorithm and software development for nonlinear systems of partial differential equations. Interdisciplinary research activities include numerical modeling of various phenomena in fuel cells, batteries, semiconductors, subsurface flow processes.


Julia for Charge Transport in Condensed Matter
Jürgen Fuhrmann

Charge transport and reactions in electrochemical and semiconductor devices are described by systems of nonlinear PDEs for the electric field and the diffusive and convective movement of charged particles.
A finite volume discretization approach turns these into a system of nonlinear algebraic equations. The Julia package VoronoiFVM.jl provides an infrastructure or this discretization approach and uses forward mode AD to set up the sparse Jacobi matrices for the solution with Newton's method.