[MITgcm-support] tension and strain vs vorticity and divergence

[Ed Hill]

On Thu, 2004-04-22 at 20:51, Sergio Jaramillo wrote:
> Hi Ed,
> 
> Thanks a lot for the help. I did what you told me and the float package 
> works fine under genmake2. The problem was that I made modifications to 
> include 3D floats, and those needed some fixing. I think now is working 
> fine. I am trying to set up now the parallel run, I hope I have no more 
> problems with the modifications I made.
> 
> Also, I am using the invariant form of the momentum equations, and  I 
> would like to know if is possible to get some directions to know when to 
> calculate the dissipation in terms of vorticity and divergence, and when 
> to do it in terms of tension and strain, and in this last case how can I 
> set the values for viscAstrain and viscAtension. I think it has 
> something to do with cases when the viscosity is not isotropic but I am 
> not sure.


Hi Sergio,

Glad you got the flt package working for your experiment.  And I'm
sorry, I don't know how to answer your question about the dissipation
and viscosity.  Perhaps someone more knowledgeable could step in here
with a few words of wisdom?

In any case, it would be very nice if we could eventually:

  1) add your 3D flt extensions to the main MITgcm code, and

  2) create 2D and/or 3D flt test case(es) within the verification 
     directory that work with the "testreport" script.

So please consider sharing your new and/or modified code with us.  I'll
do everything I can to make it easy to incorporate your changes (just
email the files) and see that you get credit for them in the
documentation.

thanks!
Ed


-- 
Edward H. Hill III, PhD
office:  MIT Dept. of EAPS;  Room 54-1424;  77 Massachusetts Ave.
            Cambridge, MA 02139-4307
emails:  eh3 at mit.edu  ed at eh3.com
URLs:    http://web.mit.edu/eh3/  http://eh3.com/
phone:   617-253-0098
fax:     617-253-4464
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