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VOL. 10, ISSUE 3 (2025)
A study of various non-newtonian fluid models and their applications
Authors
Kesar Singh
Abstract
Many fluids of industrial importance are non- Newtonian. It is now
generally recognized that, in real industrial applications, non-Newtonian
fluids are more appropriate than Newtonian fluids, due to their applications in
petroleum drilling, polymer engineering, certain separation processes,
manufacturing of foods and paper and some other industrial processes. In a
non-Newtonian fluid, the local shear stresses and the local shear rates in the
fluid have a non-linear relation, where a proportionality constant cannot be
defined. Therefore, the ‘Viscosity’ is not a fixed scalar but a variable.
Further it is also important to note that the viscosity can be dependent on the
shear rate or the time history of shear rate. Some examples are fluid
substances like ketchup, custard, toothpaste, starch suspensions, paint, blood,
and shampoo etc. Few widely used non-Newtonian fluid models are Power Law
Model, Carreau Model, Sisko Model, Herschel-Bulkley Model, Casson,
Powell-Eyring, Jeffrey & Williamson fluid model. In this paper few are
discussed in detail.
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Pages:8-10
How to cite this article:
Kesar Singh "A study of various non-newtonian fluid models and their applications". International Journal of Academic Research and Development, Vol 10, Issue 3, 2025, Pages 8-10
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