[Nek5000-users] prex question

Sat Nov 9 10:31:42 CST 2013

I have seen that we can read gmsh meshes through moab in 3d. There was a
hint that it will be implemented for 2d case also. Is there any chance this
will happen ?

Thanks
praveen

On Mon, Nov 4, 2013 at 1:27 AM, <nek5000-users at lists.mcs.anl.gov> wrote:

> Hi Paul,
>
> It is very clear with your explaination. Thank you very much!
>
> Best
>
> Tubois
>
> On Sun, Nov 3, 2013 at 8:28 PM, <nek5000-users at lists.mcs.anl.gov> wrote:
>
>>
>> Hi Tubois,
>>
>> 11 SET ENTIRE LEVEL applies the next selected
>> boundary condition to any _remaining_ boundaries for which
>> BCs have yet to be defined.
>>
>> In this case, that is just the BCs on the top and bottom
>> of the domain, since the inlet and outlet were prescribed
>> in the box file, while the sides were left blank.   The
>> cylinder itself inherits and retains its boundary conditions
>> from the "import.rea" file.
>>
>> Does this clarify?
>>
>> Best, Paul
>>
>>
>> ----- Original Message -----
>> From: nek5000-users at lists.mcs.anl.gov
>> To: nek5000-users at lists.mcs.anl.gov
>> Sent: Sunday, November 3, 2013 11:35:36 AM
>> Subject: Re: [Nek5000-users] prex question
>>
>>
>>
>> Hi Paul,
>>
>>
>> Thank you very much! Just need a confirm about your mesh.
>> 11 SET ENTIRE LEVEL
>>    1 PERIODIC-AUTO
>> means to set the periodic boundary condition for the box except the inlet
>> already set in fpcyl.box?
>> n Is this a lattice for hex-close-packed spheres?:
>> So the boundary condition for the circle will be set to walls
>> automatically?
>>
>>
>> Thank you!
>>
>>
>> Tubois
>>
>>
>>
>>
>>
>> On Sun, Nov 3, 2013 at 5:46 PM, < nek5000-users at lists.mcs.anl.gov >
>> wrote:
>>
>>
>>
>> Hi Tubois,
>>
>> I've just updated this example and have included a script that appears
>> to work.
>>
>> I recommend moving your existing ext_cyl directory to, say, ext_cyl.1,
>> and then svn update ext_cyl.
>>
>> Then, in the new ext_cyl directory you should be able to type:
>>
>> mkmesh
>>
>>
>> The README file is also updated. Have a look at mkmesh and you
>> can see the basic steps.
>>
>> Paul
>>
>>
>>
>>
>> ----- Original Message -----
>> From: nek5000-users at lists.mcs.anl.gov
>> To: nek5000-users at lists.mcs.anl.gov
>> Sent: Sunday, November 3, 2013 10:00:17 AM
>> Subject: [Nek5000-users] prex question
>>
>>
>>
>> Hello everyone,
>>
>>
>> 1, I am trying to create the mesh of the example ext_cyl with genbox, and
>> pretek. After consulting the email archives online, I almost got it works.
>> The question lies on mesh-merging. I used pretex. The commands is listed as
>> follows.
>>
>>
>> I got a mesh ext_cyl.rea identical to the one in the example, when I
>> visualized it with postx. However, when I use xxdiff to examine it, I found
>> several differences.
>> BOUNDARY CONDITIONS:
>> FLUID BOUNDARY CONDITIONS:
>> 11 0.00000 0.00000 .....
>> For the file in the example, this line is
>> P 11 1337.00 3.00000 ......
>>
>>
>> So which step did I missed? To set the BC in pretek? Can someone gives a
>> detailed command lines?
>>
>>
>> 2, About creating the mesh, the wiki says that Nek5000 works with Moab
>> Cubit, but this software is not free of charge. Is there any other free
>> software for meshing? In the archive, I found the discussion about
>> converting Gambit (we have Gambit in school) mesh to rea. The guy left an
>> email address cmeador at tamu.edu , which is no more valid.
>>
>>
>> Thank you very much!
>>
>>
>> Best regards
>>
>>
>> Tubois
>> ==================================================================
>>
>>
>> Choose a Name for This session:
>> ext_cyl
>>
>> Beginning Session ext_cyl
>> 1 READ PREVIOUS PARAMETERS
>> 2 TYPE IN NEW PARAMETERS
>> 3 CONJ. HEAT TRANSFER MERGE
>> Choose item:
>> 1
>> 1
>> Enter name of previous session
>> box.rea
>> 1 BUILD FROM FILE
>> 2 BUILD INTERACTIVELY
>> Choose item:
>> 1
>> 1
>> Enter name of previous session
>> (Default= box.rea )
>> I pressed ENTER
>>
>>
>>
>> Will Read Mesh and B.C. data from box.rea
>> Reading Element 29 [ 1C]
>> Reading Element 58 [ 1f]
>> Reading Element 87 [ 1I]
>> Reading Element 116 [ 1l]
>> Reading Element 145 [ 1O]
>> Reading Element 174 [ 1r]
>> Reading Element 203 [ 1U]
>> Reading Element 232 [ 1x]
>> Reading Element 261 [ 1a]
>> Reading Element 290 [ 1D]
>> Reading Element 319 [ 1g]
>> Reading Element 348 [ 1J]
>> Reading Element 377 [ 1m]
>> Reading Element 406 [ 1P]
>> Reading Element 435 [ 1s]
>> Reading Element 464 [ 1V]
>> Reading Element 493 [ 1y]
>> Reading Element 522 [ 1b]
>> Reading Element 551 [ 1E]
>> Reading Element 580 [ 1h]
>> Reading Element 609 [ 1K]
>> Reading Element 638 [ 1n]
>> Reading Element 667 [ 1Q]
>> Reading Element 696 [ 1t]
>> Reading Element 725 [ 1W]
>> Reading Element 754 [ 1z]
>> Reading Element 783 [ 1c]
>> Reading Element 812 [ 1F]
>> Reading Element 841 [ 1i]
>> Reading Element 870 [ 1L]
>> Reading Element 899 [ 1o]
>> Reading Element 928 [ 1R]
>> Reading Element 957 [ 1u]
>> Reading Element 986 [ 1X]
>> Reading Element 1015 [ 1A]
>> Reading Element 1044 [ 1d]
>> Reading Element 1073 [ 1G]
>> Reading Element 1102 [ 1j]
>> Reading Element 1131 [ 1M]
>> Reading Element 1160 [ 1p]
>> Reading Element 1189 [ 1S]
>> Reading Element 1218 [ 1v]
>> Reading Element 1247 [ 1Y]
>> Reading Element 1276 [ 1B]
>> Reading Element 1305 [ 1e]
>> Reading Element 1334 [ 1H]
>> Reading Element 1363 [ 1k]
>> Reading Element 1392 [ 1N]
>> Reading Element 1421 [ 1q]
>> Reading Element 1450 [ 1T]
>> drwobjs: 0
>> Showing only 90 elements of 1456
>> *** BUILD MENU ***
>> inside gencen 1456 F 4
>> done gencen 1456
>> 1 END ELEMENTS
>> 2 MODIFY ELEMENT
>> 3 GLOBAL REFINE
>> 4 CURVE SIDES
>> 5 DELETE ELEMENT
>> 6 ZOOM
>> 7 SET GRID
>> 8 DEFINE OBJECT
>> 9 REDRAW MESH
>> 10 IMPORT MESH
>> 11 IMPORT VTK MESH
>> 12 IMPORT vtx MESH
>> 13 REFLECT MESH
>> Choose item:
>> 10
>>
>> 10
>> input name of new .rea file
>> import.rea
>>
>> Would you like to displace existing elements in box?
>> y
>>
>> Found 80 curve sides.
>> IFLD: 1 1 T F
>> ***** FLUID BOUNDARY CONDITIONS *****
>> ***** FLUID BOUNDARY CONDITIONS *****$
>> This is nel,ncurve old: 1456 0
>> This is nel,ncurve new: 1536 80
>> inside gencen 1536 F 4
>> done gencen 1536
>> X min/max of new elements: -1.200000 1.200001
>> Y min/max of new elements: -1.200000 1.200000
>> NO KEEP: 514 F -1.0500000 -1.0500000 0.0000000
>> NO KEEP: 515 F -0.75000000 -1.0500000 0.0000000
>> NO KEEP: 516 F -0.45000002 -1.0500000 0.0000000
>> NO KEEP: 517 F -0.15000001 -1.0500000 0.0000000
>> NO KEEP: 518 F 0.15000001 -1.0500000 0.0000000
>> NO KEEP: 519 F 0.45000002 -1.0500000 0.0000000
>> NO KEEP: 520 F 0.75000000 -1.0500000 0.0000000
>> NO KEEP: 521 F 1.0500000 -1.0500000 0.0000000
>> NO KEEP: 570 F -1.0500000 -0.75000000 0.0000000
>> NO KEEP: 571 F -0.75000000 -0.75000000 0.0000000
>> NO KEEP: 572 F -0.45000002 -0.75000000 0.0000000
>> NO KEEP: 573 F -0.15000001 -0.75000000 0.0000000
>> NO KEEP: 574 F 0.15000001 -0.75000000 0.0000000
>> NO KEEP: 575 F 0.45000002 -0.75000000 0.0000000
>> NO KEEP: 576 F 0.75000000 -0.75000000 0.0000000
>> NO KEEP: 577 F 1.0500000 -0.75000000 0.0000000
>> NO KEEP: 626 F -1.0500000 -0.45000002 0.0000000
>> NO KEEP: 627 F -0.75000000 -0.45000002 0.0000000
>> NO KEEP: 628 F -0.45000002 -0.45000002 0.0000000
>> NO KEEP: 629 F -0.15000001 -0.45000002 0.0000000
>> NO KEEP: 630 F 0.15000001 -0.45000002 0.0000000
>> NO KEEP: 631 F 0.45000002 -0.45000002 0.0000000
>> NO KEEP: 632 F 0.75000000 -0.45000002 0.0000000
>> NO KEEP: 633 F 1.0500000 -0.45000002 0.0000000
>> NO KEEP: 682 F -1.0500000 -0.15000001 0.0000000
>> NO KEEP: 683 F -0.75000000 -0.15000001 0.0000000
>> NO KEEP: 684 F -0.45000002 -0.15000001 0.0000000
>> NO KEEP: 685 F -0.15000001 -0.15000001 0.0000000
>> NO KEEP: 686 F 0.15000001 -0.15000001 0.0000000
>> NO KEEP: 687 F 0.45000002 -0.15000001 0.0000000
>> NO KEEP: 688 F 0.75000000 -0.15000001 0.0000000
>> NO KEEP: 689 F 1.0500000 -0.15000001 0.0000000
>> NO KEEP: 738 F -1.0500000 0.15000001 0.0000000
>> NO KEEP: 739 F -0.75000000 0.15000001 0.0000000
>> NO KEEP: 740 F -0.45000002 0.15000001 0.0000000
>> NO KEEP: 741 F -0.15000001 0.15000001 0.0000000
>> NO KEEP: 742 F 0.15000001 0.15000001 0.0000000
>> NO KEEP: 743 F 0.45000002 0.15000001 0.0000000
>> NO KEEP: 744 F 0.75000000 0.15000001 0.0000000
>> NO KEEP: 745 F 1.0500000 0.15000001 0.0000000
>> NO KEEP: 794 F -1.0500000 0.45000002 0.0000000
>> NO KEEP: 795 F -0.75000000 0.45000002 0.0000000
>> NO KEEP: 796 F -0.45000002 0.45000002 0.0000000
>> NO KEEP: 797 F -0.15000001 0.45000002 0.0000000
>> NO KEEP: 798 F 0.15000001 0.45000002 0.0000000
>> NO KEEP: 799 F 0.45000002 0.45000002 0.0000000
>> NO KEEP: 800 F 0.75000000 0.45000002 0.0000000
>> NO KEEP: 801 F 1.0500000 0.45000002 0.0000000
>> NO KEEP: 850 F -1.0500000 0.75000000 0.0000000
>> NO KEEP: 851 F -0.75000000 0.75000000 0.0000000
>> NO KEEP: 852 F -0.45000002 0.75000000 0.0000000
>> NO KEEP: 853 F -0.15000001 0.75000000 0.0000000
>> NO KEEP: 854 F 0.15000001 0.75000000 0.0000000
>> NO KEEP: 855 F 0.45000002 0.75000000 0.0000000
>> NO KEEP: 856 F 0.75000000 0.75000000 0.0000000
>> NO KEEP: 857 F 1.0500000 0.75000000 0.0000000
>> NO KEEP: 906 F -1.0500000 1.0500000 0.0000000
>> NO KEEP: 907 F -0.75000000 1.0500000 0.0000000
>> NO KEEP: 908 F -0.45000002 1.0500000 0.0000000
>> NO KEEP: 909 F -0.15000001 1.0500000 0.0000000
>> NO KEEP: 910 F 0.15000001 1.0500000 0.0000000
>> NO KEEP: 911 F 0.45000002 1.0500000 0.0000000
>> NO KEEP: 912 F 0.75000000 1.0500000 0.0000000
>> NO KEEP: 913 F 1.0500000 1.0500000 0.0000000
>> Deleting element 514 of 1536.
>> Deleting element 515 of 1536.
>> Deleting element 516 of 1536.
>> Deleting element 517 of 1536.
>> Deleting element 518 of 1536.
>> Deleting element 519 of 1536.
>> Deleting element 520 of 1536.
>> Deleting element 521 of 1536.
>> Deleting element 570 of 1536.
>> Deleting element 571 of 1536.
>> Deleting element 572 of 1536.
>> Deleting element 573 of 1536.
>> Deleting element 574 of 1536.
>> Deleting element 575 of 1536.
>> Deleting element 576 of 1536.
>> Deleting element 577 of 1536.
>> Deleting element 626 of 1536.
>> Deleting element 627 of 1536.
>> Deleting element 628 of 1536.
>> Deleting element 629 of 1536.
>> Deleting element 630 of 1536.
>> Deleting element 631 of 1536.
>> Deleting element 632 of 1536.
>> Deleting element 633 of 1536.
>> Deleting element 682 of 1536.
>> Deleting element 683 of 1536.
>> Deleting element 684 of 1536.
>> Deleting element 685 of 1536.
>> Deleting element 686 of 1536.
>> Deleting element 687 of 1536.
>> Deleting element 688 of 1536.
>> Deleting element 689 of 1536.
>> Deleting element 738 of 1536.
>> Deleting element 739 of 1536.
>> Deleting element 740 of 1536.
>> Deleting element 741 of 1536.
>> Deleting element 742 of 1536.
>> Deleting element 743 of 1536.
>> Deleting element 744 of 1536.
>> Deleting element 745 of 1536.
>> Deleting element 794 of 1536.
>> Deleting element 795 of 1536.
>> Deleting element 796 of 1536.
>> Deleting element 797 of 1536.
>> Deleting element 798 of 1536.
>> Deleting element 799 of 1536.
>> Deleting element 800 of 1536.
>> Deleting element 801 of 1536.
>> Deleting element 850 of 1536.
>> Deleting element 851 of 1536.
>> Deleting element 852 of 1536.
>> Deleting element 853 of 1536.
>> Deleting element 854 of 1536.
>> Deleting element 855 of 1536.
>> Deleting element 856 of 1536.
>> Deleting element 857 of 1536.
>> Deleting element 906 of 1536.
>> Deleting element 907 of 1536.
>> Deleting element 908 of 1536.
>> Deleting element 909 of 1536.
>> Deleting element 910 of 1536.
>> Deleting element 911 of 1536.
>> Deleting element 912 of 1536.
>> Deleting element 913 of 1536.
>> drwobjs: 0
>> Showing only 90 elements of 1472
>> drwobjs: 0
>> inside gencen 1472 F 4
>> done gencen 1472
>> 1 END ELEMENTS
>> 2 MODIFY ELEMENT
>> 3 GLOBAL REFINE
>> 4 CURVE SIDES
>> 5 DELETE ELEMENT
>> 6 ZOOM
>> 7 SET GRID
>> 8 DEFINE OBJECT
>> 9 REDRAW MESH
>> 10 IMPORT MESH
>> 11 IMPORT VTK MESH
>> 12 IMPORT vtx MESH
>> 13 REFLECT MESH
>> Choose item:
>> 1
>>
>> 1
>> 1 ACCEPT MATL,QVOL
>> 2 SELECT ELEMENT
>> 3 SELECT MATL [ 0]
>> 4 SET MATL PROPS,Q
>> 5 SHOW MATL PROPS,Q
>> Choose it
>>
>> 1
>> 1
>> start locglob_lexico: 4 1472 5888 1.99999996E-02
>> locglob: 1 1 5888
>> locglob: 2 81 5888
>> locglob: 1 1562 5888
>> locglob: 2 1562 5888
>> Performing unique_vertex2 self_chk 5888
>> done locglob_lexico: 1562 1562 5888 5
>> Performing makecell self_chk 5888
>>
>>
>> *** MIDWAY BREAK MENU ***
>> ABORT to write build data to file and exit
>> SET B.C'S to continue
>> 1 SET BCs
>> 2 ABORT
>> Choose item:
>>
>> 2
>> Generating Mesh Points for 1472 Elements
>> 1472 this is nel in prexit
>> Writing Parameters to file
>> Deleting tmp.* files.
>> Exiting session 4.59163468E-41
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
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>> Nek5000-users at lists.mcs.anl.gov
>> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
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>> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
>>
>>
>>
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>
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