Heat transfer to an Ellis model fluid flowing between parallel plates

Abstract

Heat transfer problems pertaining to a parallel plate system has not been given much attention despite its significance in polymer processing, for example, in extrusion of polymer melts through a wide slit die or flow through a shallow channel melt screw pump. It may be noted that polymer solutions can be adequately represented by an Ellis model [I]. Hence, heat transfer to an Ellis model fluid in the entrance region of two parallel plates both under constant wall temperature and constant heat flux conditions has been considered in the present analysis. Flow through a circular pipe has already been considered [2].