The External Flux subnode is used to add an additional flux contribution (
Γext, i) which is not part of the constitutive relation. It can be used to add stress-driven fluxes when coupled with a Solid Mechanics interface. Multiple subnodes can be added. The mass conservation is modified as follows,
Select the checkbox for the Species to activate a flux, and then enter a value or expression in the corresponding field.
This setting is only available when the model includes deforming or rotating domains, for example when using a Moving Mesh node or a Structural Mechanics interface. From the
Frame list, select
Reference configuration or
Deformed configuration to specify the flux in the reference (material frame) or in the deformed (spatial frame) configuration.
