nonnewtonian fluid

non·new·to·ni·an flu·id

a fluid in which flow and rate of shear are not always proportional to the applied stress; does not obey Poiseuille law. As in anomalous viscosity; Fahraeus-Lindqvist effect; Bingham plastic. Compare: newtonian fluid.
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On the other hand, a laminar model was used in the membrane as the activated sludge was simulated as a nonNewtonian fluid (changes in properties due to TSS concentration and temperature were also considered).
Tao, "Electroosmotic flow of non-Newtonian fluid in microchannels," Journal of NonNewtonian Fluid Mechanics, vol.
[10] Coleman B.D., Markoviz H., NOLL W., Viscometric flows of nonnewtonian fluids, Springer - Verlag, New York, 1966.
Compact and lightweight, the portable field falling needle viscometer can be taken anywhere to check the viscosity of even nonNewtonian fluids. Stony Brook Scientific Ltd.
Although a large number of constitutive equations have been developed to describe the behaviour of nonNewtonian fluids, the most frequently used model in non-Newtonian fluid mechanics and heat transfer is the Ostwald-de Waele type power-law model [12].
(28.) Ashmore, J, Shen, AQ, Kavehpour, HP, Stone, HA, McKinley, GH, "Coating Flows of NonNewtonian Fluids: Weakly and Strongly Elastic Limits." J.