horizontal viscosity coefficients

Discussion of how to use ROMS on different regional and basin scale applications.

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amaltea
Posts: 3
Joined: Mon Mar 10, 2008 5:12 pm
Location: UPC

horizontal viscosity coefficients

#1 Post by amaltea » Fri Nov 28, 2008 3:18 pm

Dear users,

I have problems with values for horizontal viscosity coefficients. I have defined the Smagorinsky option in the cppdefs.h and I changed the visc3d value in roms.in. However the results did not change.
Does anyone have information on how can I change this coefficient??

As a beginner, I would appreciate any help.

Regards,

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kate
Posts: 3718
Joined: Wed Jul 02, 2003 5:29 pm
Location: IMS/UAF, USA

Re: horizontal viscosity coefficients

#2 Post by kate » Mon Dec 01, 2008 6:39 pm

If you want to tune your Smagorinsky parameterization, you will need to find out where it is actually coming from. Once you have compiled the code, do a grep of visc3d on your Build directory. If hmixing.f90 shows up, you will see that there is a SmagorCoef constant set in that file. It isn't picking up anything from ocean.in as far as I can see.

amaltea
Posts: 3
Joined: Mon Mar 10, 2008 5:12 pm
Location: UPC

Re: horizontal viscosity coefficients

#3 Post by amaltea » Tue Dec 02, 2008 11:50 am

kate,thanks very much for your reply!

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