What special considerations apply when pumping non-Newtonian fluids?

Considerations: apparent viscosity varies with shear rate (calculate at pump shear conditions), pressure drop correlations modified for rheological behavior (use generalized Reynolds number), NPSH may be affected by inlet conditions (shear history), and pump selection differs. For shear-thinning fluids: centrifugal may work well (high shear reduces viscosity); for thixotropic: may need initial agitation. Progressive cavity pumps handle wide viscosity range with minimal shear. Diaphragm pumps for shear-sensitive fluids. Test with actual fluid or accurate rheological data essential.