Use the Mass Flux node to specify the mass flux into or out of the model domain through some of its boundaries. It is often possible to determine the mass flux from the pumping rate or from measurements. With this boundary condition, positive values correspond to flow into the model domain
where N0 is a value or expression for the inward (or outward) Darcy’s flux that is specified.
Enter a value or expression for the Inward mass flux N0 (SI unit: kg/(m
2·s)). A positive value of
N0 represents an inward mass flux, whereas a negative value represents an outward mass flux.
Enter a value or expression for the Saturation fluid 1 s1 (a dimensionless number between 0 and 1) in the mass flux. The default value is 0.
