Brownian dynamics simulation of FENE bead-spring chain model polymer theological properties

Finitely extensible nonlinear elastic (FENE) bead-spring chain model for dilute solutions of polymer molecules in a Newtonian solvent is employed to describe the bead-bead interaction within a molecule. Brownian dynamics simulation is used to capture the steady-state and transient rheological behavior of Finitely Extensible Nonlinear Elastic bead-spring chain models in shear flow. The simulations include examination of the effects of viscosity dependent temperature, spring parameter, and shear rate. The results of simulation predict show that the shear viscosity value increases with the temperature increasing, and the model displays shear-thinning. Moreover, a large difference on the theological response for different finite extensibility.