question
 

hello I have a problem about simulating a flume with 180 degree bend conjunction with intake at 115 degree that intake has a gate at his downstream end. I want to know how i can set boundery condition FOR OUTFLOW at the end of main flume and intake in VOF modell while just water outflows from intake and both water and air outflow from main channel. for example : flow rate weighting for outflow intake=0.4 flow rate weighting for outflow main channel(air)=0.3 flow rate weighting for outflow main channel(water)=0.3