Fluid Flow Material Properties: Inelastic Non-Newtonian Material Model
These material property groups for the inelastic non-Newtonian material models (including their associated physical properties) can be added to models from the
Material
window. All inelastic non-Newtonian models property groups are available with Polymer Flow Module. Power Law, Carreau, and Bingham–Papanastasiou property groups are also available with either CFD Module or Microfluidics Module.
Table 2-33:
Inelastic Non-Newtonian Material property groups and Properties.
Property Group and Property
Name/Variable
SI Unit
Bingham–Papanastasiou
Plastic viscosity
mu_p
Pa·s
Yield stress
tau_y
N/m
2
Local Property
m_p
s
Carreau Model
Zero shear viscosity
mu0
Pa·s
Infinite shear rate viscosity
mu_inf
Pa·s
Relaxation time
lam_car
s
Power index
n_car
1
Carrea u -Yasuda
Zero shear viscosity
mu0cy
Pa·s
Infinite shear rate viscosity
mu_infcy
Pa·s
Relaxation time
lam_cy
s
Power index
n_cy
1
Transition parameter
a_car
1
Casson–Papanastasiou
Plastic viscosity
mu_pc
Pa·s
Yield stress
tau_yc
N/m
2
Local Property
m_p
s
Cross model
Zero shear viscosity
mu0c
Pa·s
Infinite shear rate viscosity
mu_infc
Pa·s
Power index
n_c
1
Critical stress
tau_tr
N/m
2
Cross–Williamson
Zero shear viscosity
mu0cw
Pa·s
Relaxation time
lam_cw
s
Power index
n_cw
1
DEKEE model
Shear rate viscosity parameter
mu_DK
Pa·s
Relaxation time
lam_DK
s
Yield stress
tau_DK
N/m
2
Local Property
m_p
s
Ellis model
Zero shear viscosity
mu0e
Pa·s
Shear stress parameter
tau_half
N/m
2
Power parameter
a_e
1
Herschel–Bulkley–Papanastasiou
Fluid consistency coefficient
m_powhb
Pa·s
Flow behavior index
n_powhb
1
Yield stress
tau_yhb
N/m
2
Local Property
m_p
s
Local Property
sr_ref
1/s
Power law
Fluid consistency coefficient
m_pow
Pa·s
Flow behavior index
n_pow
1
Local Property
sr_ref
1/s
Local Property
sr_lowlimit
1/s
Robertson–Stiff–Papanastasiou
Fluid consistency coefficient
m_powrs
Pa·s
Flow behavior index
n_powrs
1
Yield stress
tau_yrs
N/m
2
Local Property
m_p
s
Local Property
sr_ref
1/s
Sisko
Infinite shear rate viscosity
mu_infs
Pa·s
Fluid consistency coefficient
m_pows
Pa·s
Flow behavior index
n_pows
1
Local Property
sr_ref
1/s