Hi,
I created small and simple system with pump at elevation 0.0' to push water up to outfall at elevation 15.0'. Highest pipe located in the middle between pump and the outfall is at elevation 35.0' (water from pump goes from el. 0' to el. 35' and after that down to 15'). Pump shutoff is 50.0' but profile of the entire system is showing water level (Hydr. grade line) below pipe at high elevation. Should I be concern about it? End pipe is showing expected flow in results but per profile, water won't be able to reach highest pipe and go down after it. I presume static head in this case is the difference between pump and outfall (15.0' - 0.0' = 15.0') and the high point will be reached because pump shutoff head is 50.0'? Is that correct?
Thanks!
Answer Verified By: Nobravu
Here are some related articles on the use of the air valve node element in this situation (item 2 in Tom's list):
SewerCAD:
http://communities.bentley.com/Products/Hydraulics___Hydrology/w/Hydraulics_and_Hydrology__Wiki/modeling-force-mains-with-air-valves
WaterGEMS/WaterCAD:
http://communities.bentley.com/Products/Hydraulics___Hydrology/w/Hydraulics_and_Hydrology__Wiki/modeling-air-valves-at-high-points
Regards,
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.