Hello ,Is there a way to calculate the flow of nodes accurately?

Hello Groune,

Which Bentley product are you using? WaterCAD/WaterGEMS? What specifically do you mean by "flow of nodes"? Are you asking how to determine demands (outflow) in a pressurized water system? Please provide some additional information so that we can help you.

I use WaterGEMS .

I have a tank and the flow that comes out of it is  1000 L/S 

But how exactly do I distribute this flow across all nodes

Hi Groune,

Are you saying that you already see flow out of your tank? That would indicate that you either already have demands in the model, or another boundary condition (tank or reservoir) at a lower elevation.

Generally speaking there are many ways to distribute demand across a water network, and the "right" option depends on the situation and the data you have available. For example if you have a lump sum demand for the whole network and simply want to distribute that across the junctions, this could be done either by dividing the lump sum demand by the number of junctions and then initializing demands for all elements in the Demand Control Center, or it can be distributed spatially using LoadBuilder. See more in this article from our Wiki: Distributing a lump sum demand or load over a large area

For more information on other ways to distribute demands, see these other articles:

How do each of the Loadbuilder methods work? 

How do the different options to apply demands work?

If you are new to WaterGEMS, I recommend reviewing the available learning material here: Learning Resource Guide for new users of Bentley WaterGEMS and WaterCAD