The origin of polymer migration in a nonhomogeneous flow field

Abstract
Flow‐induced polymer migration is treated in a rather intuitive though mathematically formal way. It is important to incorporate hydrodynamic interaction effects as well as flow geometry effects in studying polymer migration perpendicular to the flow direction. Simple examples, circular Couette flow in the free‐draining limit and plane Poiseuille flow in the nondraining limit, are chosen to illustrate the importance of such effects.