Numerical simulation of non Newtonian turbulent flow in a stirred tank is still on an early age and further development is needed. In this paper, the flow field of a shear thinning fluid carboxymethylcellulose(CMC) was simulated using standard k ε model. The results predicted a distinct difference in velocity distribution between a shear thinning fluid and a simple Newtonian fluid(water). The main circulation loop was decreased and a swirl flow was formed at the tip of the impeller. The predicted non...