model blow-up due to abnormal velocity

[rcxy]

when i add tide, the modle blow up . I find, maybe because the velocity too large.
I check the tide forcing file, there is nothing wrong in it. Why the model blow up ?

test.PNG (28.61 KiB) Viewed 10318 times

[huangminfen]

hi,i've got the same problem as you.Have you solved it? Can you tell me how to fix it ?

[nmichelet]

Hi,
I have the same problem, did you find how to fix it?

[jcwarner]

very difficult to determine what is happening from that image.
Maybe you need to use a tide ramp:
#define RAMP_TIDES
and see if that helps.
-j

[susonic]

1. What if you run the model without tide? Does it still blow up?

2. What if you reduce the time step? Say, half from current time step.

-JH

[nmichelet]

Hi,
I already use the tide_ramp option, so I don't think this is the problem.
I also try do run it with a little time step, it takes a long time, but it still blow up at the same time. I think there is a problem with the Wet_Dry option, because I have some velocity which blows up near the coast

You can see on this picture that the velocity near the coast explode and is directed toward the coast.

[hpftcb]

Hi, I have the same problem with high velocity near the coast (resulting in model blow up). Did you solve yours?

Regards,

Fernando

[kate]

Are you using the WET_DRY option? How shallow is your coastal water?

[hpftcb]

Hi Kate,

no, I'm not using WetDry and my shelf region has very shallow parts. I am gonna try that.

Thank you.