Modeling of drift-diffusion systems

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Date
2006
Volume
1120
Issue
Journal
Series Titel
Book Title
Publisher
Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik
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Abstract

We derive drift-diffusion systems describing transport processes starting from free energy and equilibrium solutions by a unique method. We include several statistics, heterostructures and cross diffusion. The resulting systems of nonlinear partial differential equations conserve mass and positivity, and have a Lyapunov function (free energy). Using the inverse Hessian as mobility, non-degenerate diffusivity matrices turn out to be diagonal, or

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Keywords
Drift-diffusion systems, energy models, free energy, Lyapunov functions, positive solutions, inverse Hessian, cross diffusion
Citation
Stephan, H. (2006). Modeling of drift-diffusion systems (Vol. 1120). Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik.
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