Juergen Geiser

Biography

I studied mathematics at the University of Stuttgart, Germany.
In my diploma at the Institute of Computer Applications at the University
of Stuttgart, I simulate material behaviors of thin plates with
plate-equations. I developed discretization methods with non-conforming finite elements. In my next PhD research at the University of Heidelberg, Germany, I studied fluid dynamical problems related to porous media. I simulate the behavior of radioactive contaminants through an overlying rock of a waste-disposal. My PhD, I received in 2004.
In my first Postdoc position at ISC, T A & M University, College Station, Texas, USA, I studied subsurface modelling with discontinuous Galerkin methods for nonlinear partial differential equations. We could resolve
discontinuous solutions in arbitrary domains, I simulated multiflow problems in groundwater reservoirs.
My next position at WIAS, Berlin, Germany, was in a material research group, where I was involved with multiphysical modells based on heat transfer and radiation problems. My acchievements were effective domain decomposition methods for such multidomain problems.
In these years I started my decomposition research, which allows my to
deal with hierarchical model problems and multiscale problems.
An own research project with a research group, I could obtain at the
Humboldt University of Berlin and we simulate CVD (chemical vapor deposition) processes.
My current research project is at the EMA University of Greifswald. I
am developping adaptive particle in cell methods. Such methods coupled microscopic and macroscopic behaviour of the underlying plasma. Here the acchievements are deeper knowledge of
hierarchical structures of materials and an extension of standard schemes
to multiscale methods. I also acchieved my habiltitation in
computational engineering at the Ruhr University of Bochum. The topic was
related to my recent research in designing effective methods for multiscale
transport and flow problems.
The future, I am concentrating in hierarchical modelling and
simulations of multicomponent flow problems.

Areas of Research / Professional Expertise

Since recent years, I am working in numerical analysis related to
modeling and simulation of engineering problems.
I concentrate on multiscale and multicomponent models and developed
numerical schemes, which overcome the delicate multiscale and
multicomponent characteristics.
Based on that research, I am writing books and articles related to
Computational Engineering, which discussed novel numerical schemes
based on iterative approaches and my cooperation with
software-engineers in implementing such schemes. I am also teaching numerical analysis and computational engineering classes for University students.

Books