Hi all,
I'm still learning Revit and mostly trying to see how it can handle pressure loss calculations and flow reports.
I created the following setup shown below to see if Revit could predict pipe flow in separating and reconnecting branches. The pipes are well connected and, in both scenarios, form a single cold water supply system. The numbers shown below are the section labels which are relevant to the pressure loss report.
After running a pressure loss report, I noticed the left system behaved somewhat expectedly: the 4 GPM flow through section 2 splits into 2 GPM flow in sections 3 and 1, as shown in the report below:
However, the right system behaves very strangely. Section 6 has a flow associated to it (to supply the sink), but it's not pulling that flow from everywhere: the connected sections 5 and 2 both claim to have 0 GPM of flow going through them.
The same behavior appears right before the top right sink (Section 4) where there is flow, but the connecting pipes sections 3 and 1 don't claim to have any flow. The sinks both have a connector flow direction of "In", so I don't think it's assuming a supply from the sink.
I was wondering if anyone knows whether this is a bug or instead if Revit isn't able to model this? Alternatively, could I be missing something? Thanks in advance for any help or even input on your experience with pipe pressure loss reports!
André
P.S. Notice that this last Pipe Report has a section 9 with a Plumbing Fixture, neither of which actually exist. This report is for some reason seeing 3 separate sinks. However, the report here is looking at Domestic Cold Water 5 (the name of this system), which only has 2 sinks connected to it, further emphasized in the System Browser. However, I doubt this is the cause of the issue but rather another symptom of whatever's causing the problem.
