Supersonic Effect on Fiber Orientations in Channel Flows

Abstract

In a parallel, an abrupt-converging and an abrupt-diverging channel, we obtained quantitatively the degree of fiber orientation and examined the relation between fiber orientation and flow rate, non-Newtonian viscosity and supersonic effects.
The fibers are oriented well in a highly concentrated solution or in a converging flow. The supersonic effect observed as an up-and-down motion of fibers. This effect decreases as the solution is concentrated. In a diverging channel fibers flow radiately along stream lines and are oriented well.