Good day,
I want to model different unit demand scenarios. However, the unit demands keep on changing to the same values in the different scenarios? Not sure why this is happening.
I am using a different demand alternative in each scenario.
This only seems to happen with the "unit demand collections", when I am using the normal "demand collections" I do not have this problem.
Any comments or suggestions will be greatly appreciated.
Hello Jabus,
Which version of WaterGEMS you are using?
Generally when you are using unit demands or demands, with separate alternative set for separate scenarios it should work fine.
If you let us know the version, then we can test in that version and look for the issues if any.
Could you please check the same with sample models located at C:\Program Files (x86)\Bentley\WaterGEMS\Samples?
Please make sure that you have assigned correct demand alternative to the correct scenario is scenario properties?
Scenario and Alternative Management
Regards,
Sushma Choure
Bentley Technical Suppport
Hi Sushma,
Thank you very much for the reply.
I am using the following versions for hammer and water gems.
I have set up the demand alternatives correctly, as it is working fine with the normal demand collections. Only unit demand collections is giving me problems. I have tested with the sample files and the same problem occurs with the unit demands.
However, I saw that this problem only occurs when a junction is selected while toggling through the different scenarios. If no junctions are selected while making another scenario current then all works fine. It is just strange that this is not the case with the normal demand collections, as they are working fine regardless if a junction is selected or not.
Thank you for the detailed description of the issue.
I tried to change the scenarios with different demand alternatives (with different unit demand values set) in latest version and in 10.01.01.04 as well, but with junction selected to observe the unit demands change in junction properties, I did get different values as I switched between the scenarios.
However I had patch installed for 10.01.01.04 version, so I will send you patch via email - service request, that shall help you.
Also we would recommend you to upgrade to the latest version, as this issue is not observed in latest version.
Downloading OpenFlows | Hydraulics and Hydrology Software
Thank you very much for this.
However, I have installed the patch and still have the same problem.
Maybe I should update to the latest versions.
How can I do that?