[mesa-users] Turning on rotation near the ZAMS

[Richard Townsend]

Hmmm, I *can* reproduce your plot! 

So, the model itself is fine — but the v_surf value written to the history file appears to be bogus.

Bill, any insights?

cheers,

Rich

> On Aug 11, 2015, at 1:09 AM, Robert Farmer <rjfarmer at asu.edu> wrote:
> 
> So this is my final plot of omega_div_omega_crit and v_rot for the inlist provided, a few steps before the end, and mine seems fine. The outer layer is >100km/s and ~0.25. The omega_div_omega_crit=0.1 also looks similar. 
> 
> 
> Rob 
> 
> On Mon, Aug 10, 2015 at 4:44 PM, Richard Townsend <townsend at astro.wisc.edu <mailto:townsend at astro.wisc.edu>> wrote:
> On the order of 30-50 km/s, I imagine. And in the inlist I attached, I use omega_crit = 0.25, which should be in excess of 100 km/s. Similar result….
> 
> cheers,
> 
> Rich
> 
>> On Aug 11, 2015, at 12:43 AM, Robert Farmer <rjfarmer at asu.edu <mailto:rjfarmer at asu.edu>> wrote:
>> 
>> What would 0.1 Omega/Omega_crit in km/s be for a your star? I.e how far off are we?
>> 
>> Rob
>> 
>> On Mon, Aug 10, 2015 at 4:34 PM, Richard Townsend <townsend at astro.wisc.edu <mailto:townsend at astro.wisc.edu>> wrote:
>> Hi folks —
>> 
>> I’m trying to turn rotation on near the ZAMS, by adding the following flags to the &star section of my inlist:
>> 
>>       near_zams_relax_omega_div_omega_crit = .true.
>>       new_omega_div_omega_crit = 0.1
>> 
>> I then ensure the star evolves as a solid body by adding the following to the &controls section:
>> 
>>       set_uniform_am_nu_non_rot = .true.
>> 
>> Unfortunately, I’m not getting the results I expect — during the ZAMS/post-ZAMS evolution, the star remains very slowly rotating, with v_surf_km_s not rising above a km/s or so.
>> 
>> I’m clearly doing something wrong — can anyone tell me what? Input files attached.
>> 
>> Many thanks,
>> 
>> Rich
>> 
>> 
>> 
>> 
>> 
>> 
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