I just started using the Flowmaster program (ver 08.11.01.03 if relevant) to model a series of stormwater pipes which are almost certainly in a pressure flow situation based on a first round analysis using open channel flow which failed due to insufficient pipe capacity.
I completed my model yesterday by modeling each pipe between structures and noted that the hydraulic grade line easily exceeds the grate elevation for a lot of my structures and is thus overflowing. In these situations, I sort of brute forced the program to model the next pipe section by assuming the downstream hydraulic head was equal to the height of the water column at the downstream structure.
This isn't ideal as it doesn't account for losses due to pipe bends, structures, and other elements that can cause additional losses. I have previously created an Excel spreadsheet to model these sorts of losses, but it was a very complex spreadsheet created for another company that I no longer have access to.
Given that I previously made something like this with just Excel, it seems like Flowmaster should be capable of doing the same. Is it possible to use the program to model everything in the run in a single go so that losses are properly accounted for?