Hi guys. Weird problem appeared. There are 3 2D areas that I connect using SA / 2D Connection. A total of 9 connections are obtained. When starting the model, an error appears on half of the connections:
There is an inconsistency on the information about flow direction over this structure. The positive flow convention for a structure is for stationing to increase going from left
to right while looking downstream (like XS’s). The centerline’s direction is opposite what would be expected from the user entered ‘From’ and ‘To’ connected storage
areas (or 2d flow areas). To fix this problem, you need to either:
Swap the ‘From’ and ‘To’ connected storage area (2d flow area) names.
or
Reverse the centerline stationing (and likely the weir profile data as well).
The model was built according to all the rules, in the connection parameters the correct flow direction is indicated from where to. The central line has a direction from left to right when viewed from the upstream towards the downstream. I am using HEC-RAS 6.1 version