Temperature dependence of diffusivity

Temperature dependence of diffusivity

Ver: 0

DESCRIPTION

In a transport problem, when the temperature field is one of the unknowns of the global system, the diffusivity of the considered species is calculated as : Df = cst * f(T).

This menu allows for specifying the function of temperature f(T).

OPTIONS

-1
Upper level menu

1
No temperature dependence

No temperature dependence of the diffusivity : f(T) = 1

2
Polynomial law

f(T) = 1 + a1 *T + a2 *T*T + a3 *T*T*T
Allows to set the parameters a1, a2 and a3

NOTES A non-linear strategy might be required with law 2.

SEE ALSO

Chemically Reacting Flows (UM)
Defining the Species Transport Equations (UM)
diffusivity
create a sub-task

-1	Upper level menu
1	No temperature dependence
	No temperature dependence of the diffusivity : f(T) = 1
2	Polynomial law
	f(T) = 1 + a1 T + a2 TT + a3 TTT Allows to set the parameters a1, a2 and a3