which is identical to equation (2.3) presented in Chapter 2. Now comparing this equation with equation (3.26) for a power-law fluid gives:

In this case therefore n' and m' are both constant and independent of shear rate. Similarly, it can be shown that the Bingham model parameters tB and are related to m' and n' as [Skelland, 1967]:

It should be noted that in this case, m' and n' are not constant and depend on the value of the wall shear stress tw.

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