Wall-anchored semiflexible polymer under large amplitude oscillatory shear flow

The properties of semiflexible polymers tethered by one end to an impenetrable wall and exposed oscillatory shear flow are investigated mesoscale simulations. A polymer, confined in two dimensions, is described a linear bead-spring chain, fluid interactions incorporated the Brownian multiparticle collision dynamics approach. At small strain, follow applied field. However, at high we find strongly nonlinear response with major conformational changes. Polymers stretched along direction exhibit U-shaped conformations while following flow. As consequence confinement half-space, frequency doubling time-dependent polymer appears normal wall.