Characteristics of stratified flows of Newtonian/non-Newtonian shear-thinning fluids

摘要

Highlights?Exact solution for laminar stratified flow of Newtonian/Carreau fluid is obtained.?The effect of the rheology on two-phase flow characteristics is studied.?Two-phase stratified flow can behave like the liquid is Newtonian.?Boundaries of multiple solution regions are identified and mapped.?Two-Fluid model closures are discussed for this case.AbstractExact solutions for laminar stratified flows of Newtonian/non-Newtonian shear-thinning fluids in horizontal and inclined channels are presented. An iterative algorithm is proposed to compute the laminar solution for the general case of a Carreau non-Newtonian fluid. The exact solution is used to study the effect of the rheology of the shear-thinning liquid on two-phase flow characteristics