Heat flux

Materials

Since flux interactions are boundary conditions interactions (LoadingInteraction), no materials must be associated to the element.

Therefore, the first step consist in defining an ElementProperties, as

prp = ElementProperties(typeEl)
prp.put(param1, value1)
prp.depend(param1, fct1, Lock1)) #optional
...

where

`typeEl`	desired element (for example `Tm[2]HeatFlux[2\|3]DElement`)
`param1`	name of the property associated to the element (for example `FLUX`
`value1`	value of the corresponding property
`fct1`	function which characterizes the dependency of the property (optional: no fct if no dependency)
`Lock1`	Lock which defines the dependency variable of the property (compulsory if there is a dependency)

Thermal flux element in 2/3D, first or second order (thermal field of second order)

TODO : Ajouter équations de flux

Name	Description	Dependency
`STIFFMETHOD`	Method used to compute the stiffness matrix\\= `STIFF_ANALYTIC` : analytic matrix (default) = `STIFF_NUMERIC` : numerical matrix	-
`FLUX`	Thermal flux	time
`NPG`	Number of integration points (default : tm : 2 / tm2 : 3)	-

The interaction is defined as:

load = LoadingInteraction(no)
load.push(gObject1)
load.push(gObject2)
...
load.addProperty(prp)
interactionset.add(load)

where

`no`	number of the `Interaction`
`gObject1`, `gObject2`	mesh geometric entity where the boundary conditions are applied
`prp`	Properties of boundary condition elements to generate