Continuum model for linked fibers with alignment interactions

Pierre Degond, Fanny Delebecque, Diane Peurichard
2016 Mathematical Models and Methods in Applied Sciences  
We introduce an individual-based model for fiber elements having the ability to cross-link or unlink each other and to align with each other at the cross links. We first formally derive a kinetic model for the fiber and cross-links distribution functions. We then consider the fast linking/unlinking regime in which the model can be reduced to the fiber distribution function only and investigate its diffusion limit. The resulting macroscopic model consists of a system of nonlinear diffusion
more » ... ons for the fiber density and mean orientation. In the case of a homogeneous fiber density, we show that the model is elliptic.
doi:10.1142/s0218202516400030 fatcat:ajihvr3drfdcxgoyndgwyatsbm