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I'm trying to run a case where the north and south boundaries are free and the east boundary is a prescribed tide (by a liquid boundary file). However, I've found no way to work it out. I have tried these possibilities:

1. East boundary with prescribed depth (544), north and south boundaries free (444), option for liquid boundaries = 1.
This case does not even start, since the very first time step, I'll get "ill posed" warning.

2. North, south and east boundaries with prescribed depth (the same value) and option for liquid boundaries = 1. This case starts, but after a very few time steps, Nan values start to come up.

3. North, south and east boundaries with prescribed depth (the same value) and option for liquid boundaries = 2. This case starts and after a couple of time steps (more time steps than for case 2), Nan values start to come up.

4. North and south boundaries closed, east boundary open with prescribed depth. After some time, it starts exceeding the maximum number of iterations and the computation goes veeery slow, until I've had to stop it.

I really don't know what else to do

Can someone help me, please?


This a draft of the domain



This is a link for the results of the only option I've been able to run (case 1, with option for liquid boundaries = 2).

drive.google.com/open?id=1PG4cORbt_NYVv3OzmgrHwYDz5ClPY9-7