Digital Magazine "Maths and Science Adventure" Digital Magazine "Maths and Science Adv_1st issue | Page 6

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Newtonian Fluid:
A fluid, whose vis-
cosity does not
change with the rate
of deformation or
shear strain, is
called Newtonian
fluid.
A fluid which obeys Newton’s law of vis-
cosity is termed as
Newtonian fluid.
(Thixotropic fluids).
In contrast to New-
tonian fluids, non-
Newtonian flu-
ids display either a
non-linear relation
between shear
stress and shear rate, have a yield
stress, or viscosity
that is dependent on
time or deformation
history (or a combi-
nation of all the
above!).
Miltiadous Petrina
Hadjiantonas Haris
Kourris Andreas
Kosta Antrea
Stavrou Ioanna
CYPRUS
Non-Newtonian Flu-
ids:
In reality most fluids
are nonNewtoni-
an, which means that
their viscosity is de-
pendent on shear
rate (Shear Thinning
or Thickening) or the
deformation history
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