It is common to rearrange Eq. (6.57) to a friction-factor and Reynolds-number form similar to that for a Newtonian fluid. The friction factor is defined as usual by Eq. (1.22):

\[f=\frac{1}{4} \frac{p_{0}-p_{l}}{ho\langle vangle^{2} / 2} \frac{d}{L}\]

If one wishes to express the results by the same formula as for Newtonain fluids,

\[\begin{equation*}f=\frac{16}{R e} \tag{6.92}\end{equation*}\]

then how should the Reynolds number be defined for a power-law fluid?

Transcribed Image Text:

Q=R n GR71/n 3n+1 2A (6.57)