Dear Sir,
i am running my first DAMBRK model and need some help with the following parameters:
1. minimum distance between interpolated cross sections (DXM), how can be estimated? i guess from the time computational step but if this is the case, then how can i approximate the time step iwthout being too large (e.g. TP/20)
2. what is the "dam overtopping discharge coefficient (CDO)" and how can i estimate it?
3. how can i estimate expansion - contraction coefficient?

in the output results i get the warning message " at cross section 7 the DXM should be changed to 0.287 due to expansion - contraction criteria " . when i change it , the warning remains.

Thank you in advance,
Aimilia Pistrika