Hi,
I have a rising main pumping into a gravity main. The rising main and gravity main is connected with a manhole.
Even though my pipes are sloped to the minimum and diameters seemingly adequate, I get spikes in the Froude number. I'm assuming that this happens because of the wave action and backflow occurring inside the pipe as a result of a sudden influx in fluid from the rising main.
Is there a way to simulate a type of outflow controlled attenuation structure that would assist in smoothing out the volume influxes from the rising main into the gravity main?
Kind regards,
Liezl
Hi Liezl,
It may be best to take a look at your model so we can check if the Froute number problem is "real" or related to model instability or some other factor.
If this does not help, please provide a copy of the model for review by going to File > Save to Package, send us the resulting ZIP file (see two options here), and reply back with any additional steps to reproduce.
Regards,
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.