The Interior Source boundary condition can be used on interior boundaries only. With this node, the boundary condition is enforced according to:
where 〈Γ〉 is the mean flux computed internally. Here the source
g and the load factor
l can be specified.
In this section you can enter a load factor l (default: 1). It is multiplied with the flux term g to form a flux term
g l. The use of the load factor is optional (the default of 1 means that it then has no effect), and it can be used for performance reasons. The load factor can be a scalar value or a global expression. Performance benefits are obtained when the
g expression can be factorized into a constant term and a time-varying load factor.
