Why the profile of simulation time 00:00:00 (of an unsteady flow analysis project) appears water at the entire length of the reach?
I use a flow hydrograph for the upstream boundary condition and normal depth for the downstream and all the cross sections of my project are
filled with Water at time 00:00:00 (so dose the last cross section, downstream in river).
If this happens how can i find the time that water needs to arrive at the last cross section of my river?
(time series of the flow hydrograph starts with only 0.1 m3/s flow value)
I would really appreciate any opinion.