Abstract
A finite-element analysis has been carried out to study the fluid motion of non-Newtonian jets emanating from a converging channel. Three typical non-Newtonian fluid models have been considered: the power-law fluid, the modified-Bingham fluid and the Oldroyd-B fluid. The effects of five parameters on the flow field are analyzed in detail, these parameters are: the contraction ratio of the channel gap far upstream to the gap at the channel exit L; the converging angle of the channel θ; the power-law index n; the Bingham number Bn and the Weissenberg number We.
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