On the hydrodynamical limit for a one dimensional kinetic model of cell aggregation by chemotaxis

Francois James; Nicolas Vauchelet

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arXiv · 1010.3683

On the hydrodynamical limit for a one dimensional kinetic model of cell aggregation by chemotaxis

Francois James·Nicolas Vauchelet

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Abstract

The hydrodynamic limit of a one dimensional kinetic model describing chemotaxis is investigated. The limit system is a conservation law coupled to an elliptic problem for which the macroscopic velocity is possibly discontinuous. Therefore, we need to work with measure-valued densities. After recalling a blow-up result in finite time of regular solutions for the hydrodynamic model, we establish a convergence result of the solutions of the kinetic model towards solutions of a problem limit defined thanks to the flux. Numerical simulations illustrate this convergence result.

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Francois James, Nicolas Vauchelet. 2010-10-18. On the hydrodynamical limit for a one dimensional kinetic model of cell aggregation by chemotaxis. https://arxiv.org/abs/1010.3683

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