Use the Flux Discontinuity node to specify a mass flux discontinuity through an interior boundary. The condition is represented by the following equation:
In this equation, n is the vector normal (perpendicular) to the interior boundary,
ρ is the fluid density,
u1 and
u2 are the Darcy velocities in the adjacent domains (as defined in
Equation 4-19) and
N0 is a specified value or expression for the flux discontinuity.
For this boundary condition, a positive value of N0 corresponds to a flow discontinuity in the opposite direction to the normal vector of the interior boundary.
Enter a value or expression for the Inward mass flux N0 (SI unit: kg/(m
2·s)). A positive value of
N0 represents a mass flux discontinuity in the opposite direction to the normal vector of the interior boundary.
