Hello,
My name is Vicente and I´m designing a tunnel drainage network with SEWERGEMS. It´s made up of manholes and pipes but the problem comes when I need to simulate a storm attenuation tank. The pipe entering the tank is placed in the upper part of it and the pipe leaving the tank is placed in the lower part. This attenuation tank is connected to the wet-well which invert is lower than the invert of the tank, through another pipe.
How could I do it?
Thank you very much
Hello Vicente,
You can set invert elevations for conduits either directly use the node invert elevation or set them separately. In the properties for the conduit, find the property field "Set Invert to Start" and "Set Invert to Stop". If this is set to True, SewerGEMS will use the elevation of the node connected to the conduit. If this is set to False, you can manually set the invert elevation. This should work for the conduit entering the wet well. This link includes information on setting the Set Invert to Start/Stop field globally: How can I globally edit conduit inverts when "Set Invert to Start / Set Invert to Stop" is set to "True"?
For the conduit existing, you may want to model the additional pipe connected to the wet well. I am not sure if the program will allow the invert of a conduit to be below the bottom of the wet well. The connection pipe may be needed to facilitate that.
Regards,
Scott
Note also that you can use the pond element to model storage, which has an option to define the storage volume based on standard underground storage chamber systems. See more here:
I cannot tell for sure but it sounds like you might be saying that there is a storage tank, and then a wetwell right after it? If so, it could be modeled like this, with the user defined lengths for the conduit inverts as Scott described. The pond outlet could be configured as an orifice or "has control structure?" = No, to use the size of the downstream pipe for pond outflow control.
Another option to consider is to model the storage tank as a conduit, with a start control structure on the next-downstream conduit, like this:
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.
Thank you very much Jesse. I´ve done what you said and the model works.
Thank you very much Scott. I´ll do it.