Arrhenius approximate law
Ver: 1
DESCRIPTION
S = 2 * eta * D
where S is the extra-stress tensor, D is the rate of deformation tensor, and eta is the viscosity.
The temperature dependence
of the viscosity is denoted by a function H(T), where T is the temperature.
H(T) comes as a factor
in the viscosity law:
eta(g,T) = F(g)*H(T)
The approximate Arrhenius
law is obtained as the first order Taylor expansion of the original Arrhenius
law.
For the approximate
Arrhenius law, the function H(T) is written as follows :
H(T) = exp [ - alpha * ( T - Talpha ) ] .
By default, alpha =
0 and Talpha = 0.
| -1 | Upper level menu |
| 1 | Modify alfa = 0.0000000E+00 |
| 2 | Modify talfa = 0.0000000E+00 |
The units for alpha
and Talpha are:
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