[mesa-users] relax_opacity

[Bill Paxton]

Hi,

The "relax" needs to have a starting value for max opacity
which it will then incrementally change to the new max value.
Take a look at the inlists in test_suite/limit_max_opacity.
Here are the relevant lines from inlist_2 in that directory.

in &star_job
      relax_opacity_max = .true.
      new_opacity_max = 0.3
      opacity_max_multiplier = 0.99

and in &controls
      opacity_max = 2 ! use this as starting value for relaxing to smaller max opacity 


-Bill



 
On Oct 26, 2011, at 7:15 AM, jingluan at caltech.edu wrote:

> Hello,
> 
> I tried to use relax_opacity adding these lines in the star_job in inlist:
> 
> relax_opacity_max = .true.
>      new_opacity_max = 0.1
>      opacity_max_multiplier = 0.99
> 
> But it reports err because the current opacity_max=-1. What does that
> mean? No constraint on opacity at all?
> 
> I would like to use this relax_opacity to manually turn off the
> convection. Is this idea right?
> 
> If yes, then how shall I carry out relax_opacity please?
> 
> Thank you very much :-)
> 
> Sincerely,
> Jing
> 
> 
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