Numerical Simulations of Thixotropic Fluids

P. Dantan[1], and M. Faye[2]
[1] Université Paris7 Denis Diderot
[2] Université Paris11

In this paper, we introduce a kinetic equation coupled with the Navier-Stokes equations in COMSOL Multiphysics in order to simulate internal structural changes of a flowing complex fluid.

Two physical applications are considered, the starting of blood flow in a stenosis and a simulation of a laboratory rheometric set-up.

Results show good agreement with the experiments' well known hysteresis loops.