[yt-users] Raw data

Elizabeth Tasker taskere at mcmaster.ca
Mon Apr 18 12:26:53 PDT 2011


Hi Matt,

Thanks that's useful but is Total_Energy the raw data or the data once 
put through a unit conversion? The definition of Total_Energy and 
TotalEnergy here

http://yt.enzotools.org/doc/reference/field_list.html#totalenergy

is a little confused because they are defined with respect to one another.

Elizabeth

PS -- I've not just gone ahead and tried this because it's my student's 
data and he's temporarily vanished. (At least, I hope it's temporary...)



Matthew Turk wrote:
> Hi Elizabeth,
>
> I believe the only way it could go negative as a result of something
> yt is doing is if it is subtracting off the kinetic energy.  A quick
> way to check this:
>
> http://paste.enzotools.org/show/1582/
>
> Be sure to replace the load command with your dataset.
>
> -Matt
>
> On Mon, Apr 18, 2011 at 12:01 PM, Elizabeth Tasker <taskere at mcmaster.ca> wrote:
>   
>> Hi,
>>
>> Is it possible in yt to see the raw energy data? That is the field prior to
>> any unit conversation? I'm seeing odd white areas of oblivion in my
>> simulation (see attached picture) that seem to be where the total energy
>> goes negative. I strongly suspect this happens sometime during the yt
>> analysis, rather than the raw Enzo data (since the simulation doesn't crash
>> the MSCL scheme), but I want to be totally sure.
>>
>> Elizabeth
>>
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>>
>>     
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