ok, thank you, i will test it.
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Did you thing, to cut the model at this point, will decarease the caluclation duration ?
i think at this point the downwater has no influnce to the upperwater, because of the velocity and the gradient of the arch.
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May get ap1 (Water) in the arch, as subdomain with a cylinder ?
I have to search a way to reduce the time, without increase the used cores. :).
best regards
Kai
So, i make a few new simulations, with the cropped geometry.
Here is a video, with the “goal” the waterlevel measurement.
The bc at the outlet (all values zero gradient) looks like it’s working well.
I the waterlevel is not longer rising at 8 seconds, so i think we have a stady state ? May i have to calculate 15 seconds ?
The time duration for 10 seconds are 639 min and 85 core hours.
I made a chart, with the delta t of each time step and the runtime.
The deltaT places itself at < 2.5e-04 seconds, may is it possible to increase it ?
Is the timestep only based on the courant value ?
I got two more question.
The Run 3 Mesh 3 5 sec and the Run 4 Mesh 3 10 sec are totaly equal, except the simulation time.
At the Run 4 i got a notification because of high courant values > 1. Why only at Run 4 not in Run 3 ?
At the convergence plot of Run 4, you can see that the residual of p_rgh jumps up and down from 5 seconds runtime till the end. May its responsible for the little deltaT at the time steps ?
Best regards
Kai
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