General rigid bead-rod theory for steady-shear flow.

Autor: Giacomin, A. J., Coombs, S. J., Pak, Myong Chol, Kim, Kwang-Il
Předmět:
Zdroj: Physics of Fluids; Aug2023, Vol. 35 Issue 8, p1-9, 9p
Abstrakt: General rigid bead-rod theory yields uniquely the relation between macromolecular architecture and complex viscosity. For this, it relies on the analytical solution of the general diffusion equation for small-amplitude oscillatory shear flow of Bird et al. [Dynamics of Polymeric Liquids, 2nd ed. (Wiley, New York, 1987), Vols. 1–2]. Unfortunately, this general diffusion equation has yet to be solved for any other flow field. In this paper, we do so for steady-shear material functions, namely, viscosity and first normal stress coefficient. We, thus, explain the non-Newtonian behaviors of macromolecular suspensions of any axisymmetric design in steady-shear flow. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index