Model of single pipeline:
Pumping station at the start of the line with a Surge Vessel 1.5km and Air Valves at 3.7km & 9.5km.
Top left of screen: Time based graph flow from Pumping Station & water level in Surge Vessel
Top right of screen: Model Schematic components change colour during simulation
Bottom of screen: Long profile of pipeline illustrates the head during the simulation together with the maximum & minimum heads for the simulation.
Simulation of Power Failure at the Pumping Station:
Surge Vessel provides some attenuation of pressure but it is too small and so the air valves open. 1 minute 20 seconds after power failure closure of the Air Valve at 3.7km leads to further pressure surges.