Hello Serine,
You can specify the pump curve in the pump definition as a simple single design point curve wherein you can specify only the design flow and the corresponding head. You can also specify multiple point curve if you have the pump data from the manufacturer.
The duty point of the curve depends on the demands in the system. The duty point is the point on the pump curve at which the pump is currently operating.
To understand if your pump is operating on the duty point specified, you should take a look at the system head curves which represent the pump operation based on system demands, tank levels and network topology. HAMMER does not have the provision to view system head curves, because HAMMER assumes that the pump are already adequately setup for transient analysis. However, you can check the same in WaterGEMS or WaterCAD.
By comparing the system head curves at various times you can get a fair idea of the duty point of the pump. If this matches up with your manufacturer data then the pump is appropriately setup and is functioning as designed.
See the below article to understand system head curves;
Understanding System Head Curves in WaterGEMS, WaterCAD, and SewerCAD
Hope this helps.
Regards,
Yashodhan Joshi
In Hammer calculation options, (Analysis > Options > Steady State /EPS solver), you have time analysis type set as steady state , if you change it to EPS, you should be able to see the pump curve for multiple steps of EPS run.
Sushma Choure
Bentley Technical Suppport