https://doi.org/10.1140/epjst/e2017-70009-y
Regular Article
Discrete and continuum links to a nonlinear coupled transport problem of interacting populations
1 University of Warwick, Coventry CV4 7AL, UK
2 Karlstad University, 651 88 Karlstad, Sweden
a e-mail: m.h.duong@warwick.ac.uk
Received: 12 January 2017
Published online: 16 February 2017
We are interested in exploring interacting particle systems that can be seen as microscopic models for a particular structure of coupled transport flux arising when different populations are jointly evolving. The scenarios we have in mind are inspired by the dynamics of pedestrian flows in open spaces and are intimately connected to cross-diffusion and thermo-diffusion problems holding a variational structure. The tools we use include a suitable structure of the relative entropy controlling TV-norms, the construction of Lyapunov functionals and particular closed-form solutions to nonlinear transport equations, a hydrodynamics limiting procedure due to Philipowski, as well as the construction of numerical approximates to both the continuum limit problem in 2D and to the original interacting particle systems.
© The Author(s) 2017
Open Access This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
