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
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
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
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
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
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
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
Hi Elizabeth,
_read_data_set reads it directly from the file with no intervention.
-Matt
On Mon, Apr 18, 2011 at 3:26 PM, Elizabeth Tasker
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
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
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
Fabtabulous. Thank you. Matthew Turk wrote:
Hi Elizabeth,
_read_data_set reads it directly from the file with no intervention.
-Matt
On Mon, Apr 18, 2011 at 3:26 PM, Elizabeth Tasker
wrote: 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
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
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
As a brief followup to close the thread, Elizabeth noted on the
enzo-dev mailing list that this was not an issue with yt.
-Matt
On Mon, Apr 18, 2011 at 3:30 PM, Elizabeth Tasker
Fabtabulous. Thank you.
Matthew Turk wrote:
Hi Elizabeth,
_read_data_set reads it directly from the file with no intervention.
-Matt
On Mon, Apr 18, 2011 at 3:26 PM, Elizabeth Tasker
wrote: 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
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
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
participants (2)
-
Elizabeth Tasker
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Matthew Turk