User Forum of Software BASEMENT

ingridsenn

User

Registered: 2016-11-28

Posts: 10

energy line

Dear Developers,

I am simulating a partially channelised river stretch in 1D and without sediment transport. I used the HSR 1D-evaluation script, to which I did some very minor changes (e.g. zoom into a specific x-axis stretch), for visualization. Solver is upwind and simulation scheme is explicit. Initial condition is dry. Upstream boundary is a hydrograph and downstream boundary is zero_gradient.
Now viewing the result, the energy line (maximum energy line is drawn, as according to the script) is rising at various occasions along the profile.
My question is, how can I prevent getting results which are physically not meaningful? What could have gone wrong here?

Thanks

Ingrid

Matteo Facchini

Developer

From: Trento

Registered: 2014-09-05

Posts: 286

Re: energy line

Hi Ingrid,
if this is happening to you at realtively small time steps, I would recommend you to start from wet (i.e. using a uniform flow condition as restart) instead of dry conditions.
Best,
Matteo