0
A Non-Newtonian Fluid Flow in a Pipe

Excerpt

In this chapter we will consider time-independent non-Newtonian fluids flowing in a pipe in a fully developed state and in a laminar flow regime. Non-Newtonian fluids are studied in rheology, which is the science of deformation and fluid flow. In Newtonian fluids like water, air, milk, and so on, the shear stress applied to a fluid element is proportional to the shear rate, namely the local velocity gradients, where the proportionality constant is the fluid’s viscosity μ [(N s) m−2], constant at a given temperature. On the other hand, for non-Newtonian fluids, the fluid’s viscosity is not a constant at a given temperature and changes with the magnitude of the shear rate and in some cases with time.

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In