If I do an EPS and then decide to annotate the pipes and junctions with respective pressures and nodes, is there a way to identify which time step of the EPS is being displayed? I have a hard time understanding the results on the model itself. My summary is all green and everything is balanced per the results but if I try to get the system annotate everything the numbers are not what I expected. The same question applies for the Flex tables. I'm having trouble understanding what time step is showing up in the flex tables. I'm new to watergems and just need some help interpreting the results.
First, make sure the Auto Refresh option is selected (has a checkmark beside it) in View - Refresh. This Wiki article contains more information.
The results are probably reflecting the first timestep before water begins to flow through the system. See this Wiki article for instructions on how to look at certain time steps.
Also, as a new user, you might find the following article to be a good resource - Learning Resource Guide for new users of Bentley WaterGEMS and WaterCAD.
Please let us know if you need more information or if you have trouble with any of the links provided.
My response assumes that you are using WaterGEMS or WaterCAD.
Thank you for this. It was definitely helpful. I definitely feel like I've gotten further than I was when I sent the message earlier but still having some trouble. If I understand this correctly, demand patterns represent the 'fixed demand' with multipliers for whatever time of day (i.e. 1 GPM with a 1.6 multiplier would be 1.6 GPM) then shouldn't I see that in the results? I understand you don't have my model in front of you but what I'm struggling with is that everytime I go to graph a demand for a junction, the junction graph over a 24 hr period is considerably different than what I expected it to be. My fixed demand is let's say 10 GPM and well it never even gets to 10 GPM? Is it saying my pumps can't handle the demand?
It is best to start a new thread for a new question.
It would be best to see a copy of the model plus steps to reproduce, or a more detailed description.
Without that I can only guess that you might be encountering pattern smoothing - generally speaking the calculated demand at a node during EPS will be equal to the base flow multiplied by the pattern multiplier at the given timestep, but depending on the type of pattern, some averaging is done such that the calculated flow will be slightly different than a basic hand calculation. See more here: Demand calculation with Continuous vs Stepwise patterns
If you need to provide a copy of the model for review, see: Sharing Hydraulic Model Files on the OpenFlows Forum
Jesse DringoliTechnical Support Manager, OpenFlows ProductsBentley Communities Site AdministratorBentley Systems, Inc.
Thank you for this. I will post another thread for this. I am getting approval on whether or not we can share files. Our site is quite sensitive to sending stuff out. I did however, take pictures of my results so that you can have some idea of what I'm confused. I know this isn't the full picture but I just wanted you to see what I was struggling with. The first picture shows the demands for the nodes and all of them are patterned with multipliers. The second picture shows my pump discharge at different time periods during the day. The third picture shows the flows to the different demand junctions from picture 1 at different hours. The last picture shows the feeds to the tanks.