[mesa-users] Imposing an arbitrary rotation profile

Bill Paxton paxton at kitp.ucsb.edu
Wed Aug 10 16:06:39 EDT 2016


Hi Rob,

It would be excellent for you and Rich to provide "relax" options for this.  

Cheers,
Bill



On Aug 10, 2016, at 1:01 PM, Robert Farmer wrote:

> Would another option be to do something similar to the star_relax_composition? ie we make a star_relax_nonuniform_omega  that accepts the current omega profile and a new omega profile that is then interpolated between over a number of steps. There is already star_relax_uniform_omega, we just need to be able to pass something more complicated than a single omega value.
> 
> Rob
> 
> On Wed, Aug 10, 2016 at 12:53 PM, Bill Paxton <paxton at kitp.ucsb.edu> wrote:
> Hi,
> 
> Sounds like an interesting project that should be possible without too much pain.
> 
> But rather than going into the private files, would you be willing to help us improve the "hooks" for mesa to see if we can provide something to give you what you need.   That might help the next person who wants to do something like this but doesn't have your skills for changing the internals of mesa.
> 
> I wonder if you could use the "other_torque" hook to spin up the model to what you want?   Also consider the "other_torque_implicit" hook.
> 
> Let us know how it goes.
> 
> Cheers,
> Bill
> 
> 
> 
> 
> On Aug 10, 2016, at 12:41 PM, RICHARD H D TOWNSEND wrote:
> 
> > Hi Bill —
> >
> > For a project I’m working on right now, I’m interested in extending MESA to allow an arbitrary rotation profile to be imposed on a starting model. My plan of attack is to add extra routines to relax.f90 to take care of this.
> >
> > Do you have any words of advice or warning before I embark on this?
> >
> > cheers,
> >
> > Rich
> >
> 
> 
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