Hello,
I am new to civil storm, but I've been using microstation for 3 years. I am hoping someone has a suggestion for the model I have been creating. We are simulating a porous parking lot using Civil Storm V8i, and trying to fit the model with storage data we have been collecting for an existing lot. The model has a catchment area moving to a retention pond, then a detention pond which has a perforated pipe for over flow into the sewer system.
Our problem has been in connecting the two ponds together, as there is not a built fixture connecting them, its natural flow, and also trouble simulating perforated pipe. If anyone has any suggestions as to modifying the model. Our current attempt throws a memory usage error and then suggests we change our calculation length.
Thanks,
-Alex
Hello Alex,
Do you happen to have any manholes in your model with the structure type set to "transition"? If so, the memory error you're encountering is a known issue related to that. A patch is available for CivilStorm 08.11.02.62, which you can obtain by contacting technical support.
I'm not sure I understand exactly how your two ponds are connected, so I'll let other contributors comment on that. As for the perforated pipe, assuming you're using the latest version and this structure is a standpipe sticking out of the bottom of the pond with holes in it, you can model this using a riser and orifices. In your composite outlet structure, create a riser element and one orifice element for each bank of orifices. For example if there are 4 orifices around the pipe at 3 different elevations, create 3 orifice elements within the composite outlet structure and enter '4' as the "number of openings". The riser element would be used to model the opening at the top (if there is one). If there's a culvert downstream of the perforated pipe, create a culvert element within the composite outlet structure as well, then set the downstream ID of everything else to that culvert. Otherwise, set the downstream ID of everything to "tailwater". You would then select the composite outlet in the properties of the pond outlet node.
If you need any additional help or if you have any other technical questions, please direct them to technical support.
Regards,
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.