Constant viscosity
DESCRIPTION
S = 2 eta D
where S is the extra-stress tensor, D is the rate of deformation tensor, and eta is the viscosity.
A Newtonian liquid is characterized by a shear-rate independent viscosity :
F(g) = fac
where fac is the constant viscosity factor.
By default, fac = 1.
NOTES
-1 Upper level menu 1 Modify fac = 1.0000000E+00
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