[mesa-users] density and sound speed profiles with "ripples" in solar calibration example

[Ana Olímpia]

Hi again!

I was reading the cesam's manual and it looks like it does not use the
concept of cell. I think it works with a system of concentric spheres with
different values of R (radius) and the other parameters are taken at the
surface of these spheres.

Regards,
Ana



On Fri, Aug 22, 2014 at 12:54 AM, Ana Olímpia <anaolimpiabrito at gmail.com>
wrote:

> Hi Francis,
>
> I always thought they were defined all at cell centers but now that you
> are asking I realize that I have to take a look at the manual. I'm not sure
> about that.
>
> Regards,
> Ana
>
>
> On Thu, Aug 21, 2014 at 4:32 AM, Francis Timmes <fxt44 at mac.com> wrote:
>
>> hi ana,
>>
>> … and along the lines of bill’s earlier message, are the
>> cesam numbers defined at cell centers, cell edges, or something else?
>>
>> fxt
>>
>>
>>
>>
>>
>> On Aug 20, 2014, at 8:20 PM, Bill Paxton <paxton at kitp.ucsb.edu> wrote:
>>
>> > Hi Ana,
>> >
>> > Thanks for sending your solar results.  They are certainly smooth, but
>> the sound speed match to the solar data isn't quite up to the other codes.
>>  I image this is just a result of not doing as many cycles of calibration.
>> I've attached the data being used for the comparisons in this plot in case
>> you'd like to check that I've correctly represented your results in the
>> plot.
>> > <solar_comparison.pdf>
>> >
>> > here are the corresponding rms deviations:
>> >
>> > MESA rms 0.000632728747717372
>> > BBP98 rms 0.000930645900227312
>> > S09 rms 0.00113436296074351
>> > Ana using CESAM rms 0.0057738746271799
>> >
>> > Let me know how things go with the "ripples".
>> >
>> > Cheers,
>> > Bill
>> >
>> > <csound.data>
>> >
>> >
>> >
>> >
>> > On Aug 20, 2014, at 7:13 PM, Ana Olímpia wrote:
>> >
>> >> Hi Bill,
>> >>
>> >> thank you for replying so quickly!
>> >> I will follow your suggestions (I have not done any of them yet) and
>> then I will let you know the results.
>> >>
>> >> I am sending attached the file with the cesam output for my solar
>> calibration (radius is the first column and csound^2 the last one).
>> >> If you need something else, please let me know.
>> >>
>> >> Regards,
>> >> Ana
>> >> <sun_cesam.txt>
>> >
>> >
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