[Nek5000-users] Periodicity with curvature
nek5000-users at lists.mcs.anl.gov
nek5000-users at lists.mcs.anl.gov
Sat Jan 13 13:00:48 CST 2018
My apologies, can you clarify what you mean?
I made global refinements one more time, and re-assigned the periodic BCs
within prex. For this 2D case (attached), I have linked the 8 element sides
with the right 8 sides. All other sides are walls.
Thank you,
Jon
On Sat, Jan 13, 2018 at 12:49 PM, <nek5000-users at lists.mcs.anl.gov> wrote:
> can you try again with at least 3 elements in other direction.
>
> On 13 Jan 2018, at 19:42, "nek5000-users at lists.mcs.anl.gov" <
> nek5000-users at lists.mcs.anl.gov> wrote:
>
> Thanks for the quick response. I made some global refinements but it seems
> I'm still getting the same error with genmap.
>
> Attached is the new .rea file with 4 elements in the periodic direction.
>
>
> On Sat, Jan 13, 2018 at 12:32 PM, <nek5000-users at lists.mcs.anl.gov> wrote:
>
>> You need to have at least three elements in the periodic direction.
>>
>> On 13 Jan 2018, at 19:19, "nek5000-users at lists.mcs.anl.gov" <
>> nek5000-users at lists.mcs.anl.gov> wrote:
>>
>> Dear Nek Users,
>>
>> I am trying to get periodicity to work in the lastest version of Nek.
>> I've made an extremely simple mesh within prenek (prex) in polar
>> coordinates and cannot seem to run this case. When I run genmap, I get the
>> error below. Did I do something wrong in setting up this mesh?
>>
>>
>>
>> >> genmap
>> reading a.rea
>> Input mesh tolerance (default 0.2):
>> NOTE: smaller is better, but generous is more forgiving for bad meshes.
>> 0.01
>> reading mesh data ...
>> start locglob_lexico: 4 2 8
>> 1.0000000000000000E-002
>> locglob: 1 1 8
>> locglob: 2 5 8
>> locglob: 1 6 8
>> locglob: 2 6 8
>> done locglob_lexico: 6 6 8 2
>> start periodic vtx: 2 6
>> 1 4 4 Matrix: x0
>> 1 x0 1.0000E+00 1.0000E+00 5.4347-323 4.9407-324
>> 2 x0 -3.5355E-01 3.5355E-01 6.9423-310 6.9423-310
>> 3 x0 3.5355E-01 -3.5355E-01 6.9529-310 6.9529-310
>> 4 x0 6.9423-310 6.9529-310 2.3477-313 3.1632-317
>> 2 4 4 Matrix: x1
>> 1 x1 1.0000E+00 1.0000E+00 6.3240-322 0.0000E+00
>> 2 x1 -3.5355E-01 3.5355E-01 0.0000E+00 6.9423-310
>> 3 x1 -3.5355E-01 3.5355E-01 6.9423-310 6.9529-310
>> 4 x1 6.9423-310 6.9423-310 6.9423-310 6.9529-310
>> 1 4 4 Matrix: z0
>> 1 z0 1.0000E+00 1.0000E+00 5.4347-323 4.9407-324
>> 2 z0 -2.1213E+00 -1.4142E+00 6.9423-310 6.9423-310
>> 3 z0 2.1213E+00 1.4142E+00 6.9529-310 6.9529-310
>> 4 z0 6.9423-310 6.9529-310 2.3477-313 3.1632-317
>> 2 4 4 Matrix: z1
>> 1 z1 1.0000E+00 1.0000E+00 6.3240-322 0.0000E+00
>> 2 z1 1.4142E+00 2.1213E+00 0.0000E+00 6.9423-310
>> 3 z1 1.4142E+00 2.1213E+00 6.9423-310 6.9529-310
>> 4 z1 6.9423-310 6.9423-310 6.9423-310 6.9529-310
>> 1 3 0 1.00000000E-03 2.12132000E+00 abort: FACE MATCH FAIL
>> 2 4 3 2.12132000E-03 1.00000031E+00 abort: FACE MATCH FAIL
>>
>> 0 quit
>>
>>
>>
>>
>>
>> The mesh within my .rea file is as follows:
>> 20.0000 20.0000 -8.00000 -4.00000
>> XFAC,YFAC,XZERO,YZERO
>> **MESH DATA** 1st line is X of corner 1,2,3,4. 2nd line is Y.
>> 2 2 2 NEL,NDIM,NELV
>> ELEMENT 1 [ 1A] GROUP 0
>> -2.121320 -1.414213 -0.8742276E-07 -0.1311341E-06
>> 2.121320 1.414213 2.000000 3.000000
>> ELEMENT 2 [ 1B] GROUP 0
>> -0.1311341E-06 -0.8742276E-07 1.414213 2.121320
>> 3.000000 2.000000 1.414213 2.121320
>> ***** CURVED SIDE DATA *****
>> 4 Curved sides follow IEDGE,IEL,CURVE(I),I=1,5, CCURVE
>> 2 1 -2.00000 0.00000 0.00000 0.00000 0.00000
>> C
>> 4 1 3.00000 0.00000 0.00000 0.00000 0.00000
>> C
>> 2 2 -2.00000 0.00000 0.00000 0.00000 0.00000
>> C
>> 4 2 3.00000 0.00000 0.00000 0.00000 0.00000
>> C
>> ***** BOUNDARY CONDITIONS *****
>> ***** FLUID BOUNDARY CONDITIONS *****
>> P 1 1 2.00000 3.00000 0.00000 0.00000
>> 0.00000
>> W 1 2 0.00000 0.00000 0.00000 0.00000
>> 0.00000
>> E 1 3 2.00000 1.00000 0.00000 0.00000
>> 0.00000
>> W 1 4 0.00000 0.00000 0.00000 0.00000
>> 0.00000
>> E 2 1 1.00000 3.00000 0.00000 0.00000
>> 0.00000
>> W 2 2 0.00000 0.00000 0.00000 0.00000
>> 0.00000
>> P 2 3 1.00000 1.00000 0.00000 0.00000
>> 0.00000
>> W 2 4 0.00000 0.00000 0.00000 0.00000
>> 0.00000
>> ***** NO THERMAL BOUNDARY CONDITIONS *****
>>
>> <mime-attachment.png>
>>
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