Abstract
Flow rates and power requirements are presented for the pulsating, laminar flow of non-Newtonian power law fluids in pipes under a sinusoidal pressure gradient. A finite difference method of analysis is used which checks against available analytical solutions to within 1 per cent. It is found that for pseudoplastic fluids the pulsations can increase the flow rate above that which would be obtained under steady flow conditions at the same mean pressure gradient. The converse is true for dilatant fluids. However, for all power law fluids, the power required to transport the fluid in pulsating flow is nerver less than that required for the sames flow rate under steady flow conditions.
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