I have a small pond designed in sewergems complete with an outflow structure that discharges to a pipe, which will connect to an existing storm sewer manhole. When I run my design storm through the model I have noticed that the pond Flow (Out to Links Maximum) column in the flex tables does not match the max flow for the outfall pipe. The pond Flow Out to Links Maximum is 10cfs higher than the max flow that shows for the pipe. I am not sure what the Flow Out to Links Max is calculating and would appreciate any input. The outflow curve for the pond matches what the outfall pipe shows for max flow, so I'm a little confused on what SewerGems is calculating for Pond Out to Links Maximum.
Thanks,
Hello Joshua,
"Flow (Out to Links Maximum)" should show the peak outflow from the pond. Are you saying that the pond's "Flow (Out to Links Maximum)" does not match the peak of the pond outflow hydrograph? Can you provide a snapshot of the pond graph showing both together? *you can add the max result from the "results" folder in the graph series options)
You may need to set the Output Increment equal to the Calculation Timestep in your calculation options, to ensure that the flow graph is not "missing" results from between the reported timesteps.
Also, it may help to see a copy of your model, along with specific steps to reproduce: Sharing Hydraulic Model Files on the OpenFlows Forum
Regards,
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.