Polymers in plane Poiseuille flow: Dynamic Monte Carlo simulation

We present the results of a dynamic Monte Carlo simulation of macromolecules in a dilute solution subjected to plane Poiseuille flow in a channel between impenetrable walls, in two dimensions. The polymer dimensions parallel and perpendicular to the flow direction and the polymer distribution in the flow channel are calculated as a function of the distance from the walls and the difference with previous work on self-avoiding chains in simple-shear flow is discussed. In agreement with our previous analysis of the simple-shear flow case we find that Poiseuille flows also produce narrowing of wall-depletion layers.