[mesa-users] dlnRho_dlnT_const_Pgas, dlnRho_dlnPgas_const_T

[Martin C.]

Ok thanks very much Robert and Bill.



> Can i ask why you want those terms?
>


They appear in an equation I'm trying to implement in the other_d_mix
routine.




>
> Whats happened is that mesa has an option to either use lnPgas (ln gas
> pressure) or lnd (ln density) as a variable in the equations. By default we
> use lnd, thus those dlnRho terms are not defined. Either you can set to
> true:
>
>          !### change_lnPgas_flag
>          !### change_initial_lnPgas_flag
>          !### new_lnPgas_flag
>          ! lnPgas variables
>          ! `lnPgas_flag` is true if we are using lnPgas variables in place
> of lnd
>
>       change_lnPgas_flag = .false.
>       change_initial_lnPgas_flag = .false.
>       new_lnPgas_flag = .false.
>
> In your stars inlist to switch to lnPgas, or if i know why you want those
> terms i could suggest another set of d... terms that are useful for you.
>
> Have a look in star/private/profile_getval and you'll see you need s%
> lnPgas_flag to be true to get a value.
>
> Rob
>
>
> On Tue, Jun 21, 2016 at 6:30 PM, Martin C. <martincs14 at gmail.com> wrote:
>
>> Hi,
>> In my profiles*.data files, for
>> dlnRho_dlnT_const_Pgas    and
>> dlnRho_dlnPgas_const_T
>> I get just zeros.
>>
>> When I put
>>
>>          do k = 1,s% nz,30
>>             print*,k, s% dlnRho_dlnT_const_Pgas(k)
>>          end do
>>
>> in extras_finish_step, I get just NaN.
>>
>> Is this normal, or what don't I understand.
>>
>> I'm just using the 'default' star work folder,
>> mesa 8118, ubuntu14
>>
>> thanks,
>>
>> Martin
>>
>>
>>
>>
>> --
>> Martin C.
>>
>>
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>


-- 
Martin C.
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