Numerical simulation of the motion of a sphere in a boger fluid

摘要: We use the finitely extensible non-linear elastic dumbbell theory developed by Chilcott and Rallison in order to analyze flow of an inorganic Boger fluid around a sphere for two ratios cylinder radii. four different sets material parameters describing same viscometric behavior fluid; we find important differences drag dependence upon Weissenberg number. In particular, examine generation recirculating vortices wake sphere. also calculate effect second normal stress difference drag.