[zwttc2005]

Dear fellow Openformers,

I am currently trying to simulate 1-dimensional pipeline outflow with twoPhaseEulerForm solver.

The outlet boundary condition I have selected is the waveTransimissive one which solves the advection equation for boundary pressure and velocity.

However, if a puncture release is to be modelled, i.e. the outflow area is not equal to the pipe cross-section area, how to modify the boundary condition for this scenario?

I have thought of changing the volumetric flux calculated at boundary surface but without any luck. Any suggestion will be much appreciated!