Iber model
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ERROR: time increment<0.0000001 (Courant)

Rodier Rose
08/06/2021 10:23:00
ERROR: time increment<0.0000001 (Courant)
Hello,

I tried to run a simulation with bedload transport, the hydraulics only is consistent.
But I have the error: time increment<0.0000001 (Courant).

I tried to change the CFL (to 0.3), the wet-dry limits and the model (Meyer-Peter Müller et Recking).
I saw in the spanish forum that it could be beacause of the rock position, but it didn't solve the error.

If someone know how to solve this ERROR, or an idea on how to solve it, it would be great. 

Best regards.

 ERROR: time increment<0.0000001 (Courant)   Rodier Rose 08/06/2021 10:23
         ERROR: time increment<0.0000001 (Courant)   Marcos Sanz Ramos 09/06/2021 07:17