Dear Users,

We have a situation where a steep channel goes into a shallower channel.
The flow goes from super critical to sub-critical. It seems that Extran
output files indicate the peak velocity at the downstream junction of
the steep channel, therefore the reported velocities are slower than
what might be expected in the upper sections of the channel. To
determine the peak velocities in the upper section, we put in a
fictitious junction at the mid point of the steep channel. This did
result in approximately 30% higher velocities.

I'm interested in finding out if there is any recommendations on how we
could determine the actual peak velocity in a channel. I'm currently
running SWMM 4.4h.

Thanks for your help.
Dilan Singaraja