the flowRateOutletVelocity was not working for me, not sure why; the door_outlet is a fan based outlet whreas the door is just a standard door but i will implement the pressure... outlet the door htne; ye so i redid my Omega values to be 100 as starting and it was still erroring; i set k as 0.375 which was what cmae with the PitzDaily case but havent calculated it for my explicit case (with velocity vlaues in between 0-8,9 m/s); the length scale is a little tricky as this is a room so im working iwth about 0.25m per cell and a standard lenght of around 0.5 m (not sure how else i would approximate this)