For pipes at angle points (horizontally) or slope changes (vertically) , should I treat those locations as "transition" or"cross section" or it doesn't matter when you run the system?
If you are simply trying to model a bend in the pipe where the slope changes, you could indeed use the transition node. This is like the manhole, but is enclosed (whereas the manhole has a structure that extends vertically) .
To explain a bit more, the below Support Solution has been logged:
communities.bentley.com/.../12703.cross-section-vs-transition-for-modeling-slope-or-size-change.aspx
Regards,
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.
Answer Verified By: Scott Kampa
Hi Nigel,
From element point of view, you have little more options to enter in a manhole Vs a transition. From the hydraulics point both will calculate the headloss. Now, cross-section is a different element generally it represents the geometry of a channel/gutter.
But, when it doubt, match the system out!So, however system is built, try to model the same way. If you find a manhole in real system, place a manhole.
Here's a quick comparison of Manhole and Transition:
HTH,