v5.0.6 and v5.0.7 - Energy grade and critical depth issues 1D bridges

classic Classic list List threaded Threaded
1 message Options
Reply | Threaded
Open this post in threaded view
|

v5.0.6 and v5.0.7 - Energy grade and critical depth issues 1D bridges

Mike Law
A colleague and I have both experienced the same issue when modelling bridges in simple 1D models of a single reach with less than ten cross-sections. While long-profile water surface elevations look reasonable, the energy grade lines rise between some cross-sections moving downstream (but with no additional input of flow to boost energy), and the critical depth elevations are so high as to be into orbit.

The issue has occurred in versions 5.0.6 and 5.0.7, but the models run fine in 5.0.3.