Draw on a [?yx versus (-dvx/dy)] diagram curves representing two of the followin

Question

Draw on a [?yx versus (-dvx/dy)] diagram curves representing two of the following three types of fluids:
a) Newtonian fluid
b) "power-law" fluid
c) Bingham plastic fluid
(Hint: A power-law fluid is a type of generalized Newtonian fluid for which the shear stress, ?, is give by , Where K is the flow consistency index (SI unit Pa.Sn); is the shear rate or the velocity gradient perpendicular to the plane of shear (SI unit s-1); n is the flow behavior index (no unit). If n <1, it is called Pseudoplastic power law fluid or shear-thinning fluid. It has a lower apparent viscosity at higher shear rates. If n>1, it is called Dilatant power law fluid or shear-thickening fluid. It increase in apparent viscosity at higher shear rates. )

Explanation / Answer

b) "power-law" fluid

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