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FAQ/ Error countermeasures for levee flow rate calculated by levee failure model

If you use the overflow formula in a levee model, the calculated breakage flow rate may exceed the river flow rate.

Do you have any measures in place in that case?


The flow rate of the floodplain from a certain river channel section can be adjusted so that the water depth of the river channel section does not become negative.

With this setting, if a negative depth of the river channel is detected, the time step is reduced and the calculation is recalculated.

Last update: 2023-03-17