[yt-dev] Vorticity

Matthew Turk matthewturk at gmail.com
Tue Apr 15 05:50:51 PDT 2014


Hi Britton,

It's offset in both x and y by one zone -- and actually, the problem
is in 2.X, I should have been more clear.  So I'm wondering if perhaps
there's a rounding error when computing the left/right edges of the
covering grid for the zones.

-Matt

On Tue, Apr 15, 2014 at 8:49 AM, Britton Smith <brittonsmith at gmail.com> wrote:
> Hi Matt,
>
> Which direction is the offset?  This could be something I screwed up when
> porting the vorticity fields to yt-3.0.
>
> Britton
>
>
> On Tue, Apr 15, 2014 at 12:37 PM, Matthew Turk <matthewturk at gmail.com>
> wrote:
>>
>> Hi all,
>>
>> I have been working with Jia-Hung on looking at vorticity in his GAMER
>> simulations.  He has supplied me with a dataset where the minimum
>> vorticity (by prescription) should be at the center.
>>
>> After a lot of back and forth with him and with Jeff Oishi, I
>> determined that what looks to be happening is that unless I set the
>> number of ghost zones to 2 (instead of 1) there is a systematic
>> offset.
>>
>> Can anybody think why this might be?
>>
>> I'm working on making this into a unit test to check its behavior in 3.0.
>>
>> -Matt
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>
>
>
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