New analysis of non‐newtonian turbulent flowndashyield‐power‐law fluids

The writers' new analysis of non‐Newtonian turbulent flow is extended to the yield‐power‐law model. As the value of the exponent of the yield‐power law decreases from unity, the calculated friction factor begins by converging toward the Newtonian line at high velocity, then parallels it, and finally diverges downward. This prediction agrees with previously unexplained experimental results.