[mesa-users] Diffusion coefficient related to thermohaline diffusion

[Bill Paxton]

Hi,

Here's the info from the controls.defaults 

         ! am_nu = diffusion coefficient for angular momentum
         
         ! am_nu_non_rot = am_nu_factor*am_nu_non_rotation_factor*D_mix_non_rotation
         ! am_nu_rot = am_nu_factor*max(am_nu_visc_factor*D_visc,
               ! am_nu_DSI_factor*D_DSI + 
               ! am_nu_SH_factor*D_SH + 
               ! am_nu_SSI_factor*D_SSI + 
               ! am_nu_ES_factor*D_ES +
               ! am_nu_GSF_factor*D_GSF + 
               ! am_nu_ST_factor*nu_ST)
         ! am_nu = am_nu_non_rot + am_nu_rot

So, the angular momentum diffusion (am_nu) includes a non-rotational term, am_nu_non_rot.
And D_mix_non_rotation includes all the mixing, convection, semi-convection, thermohaline.......

Hope that helps.

-B



On Apr 28, 2014, at 3:12 PM, Corentin Cadiou wrote:

> Hi mesa users,
> 
> I am currently working on thermohaline diffusion inside red giants and I
> was wondering whether or not a diffusion coefficient for angular
> momentum transport was calculated for this process.
> 
> I was able to find many different angular momentum diffusion coefficient
> (for kinematic viscosity,dynamical shear instability, Solberg-Hoiland
> instability, ...) as well as a diffusion coefficient for elements for
> thermohaline mixing.
> 
> Best,
> Corentin
> 
> 
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