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Can I set the value of flow and pump head to a specific number like the value from SCADA?

If my model have two water source with pumps and I have SCADA datas of pumps, can I just fix the flow and pump head of them?

It might helps me to analysis the flow in pipes and pressure of junctions are correct or not.  

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  • You really shouldn't "fix" both the head and flow at the pump. You should use the pump curve for the model and see what operating points the model calculates. If they agree with the SCADA data, then your model is good. If the model doesn't agree with the SCADA data, you need to determine why it doesn't and correct that issue.

    However, the way you approach this depends on the kind of analysis you are conducting. For example, if you are studying pump selection or operation, you should use the pump curve.

    In some cases  you are studying some problem out in the system far from the pump.  You may be able to get by with some shortcuts such as representing the pump as a know HGL (using a Reservoir node) or representing the pump as a known inflow (negative demand on teh system) on the system. In each case, you need to check that the results are reasonable. For example, if you represent the pump as its discharge HGL and the pump flow at that head is 50 L/s, make sure that the model isn't saying that the discharge from the reservoir is 150 L/s.

    In general, the best use of SCADA data is to compare it with model results for calibration and use the resulting pump curve, not the SCADA data itself, to drive the model.