Dam Breach Model using 2D in HEC-RAS 5.0.3: 1D/2D Flow Error Message

[Kinagoto]

I am running a Dam Breach Model using 2D in HEC-RAS 5.0.3.

I am getting an 1D/2D Flow Error of about -4791 (see attached screen capture). What is its consequence? Could that is cause by backwater effect? How it will affect the final results?

Any idea on how to fix it.

Thanks,

Kinagoto

[cameron]

This message is stating that there is an error of that much flow across your 1D/2D connection. To fix this, you either need to adjust the connection or increase the 1D/2D iterations to 20 if not done so already.

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