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<p style="margin-top:0;margin-bottom:0">Dear Sijo,</p>
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<p style="margin-top:0;margin-bottom:0">Attached is a code n3to2.f --- written 10 years ago and not tested since. You can</p>
<p style="margin-top:0;margin-bottom:0">try this; or you can just write a script to </p>
<p style="margin-top:0;margin-bottom:0">extract the xy coordinates and requisite</p>
<p style="margin-top:0;margin-bottom:0">bcs from your 3D .rea file.</p>
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<p style="margin-top:0;margin-bottom:0">No guarantees on the attached, but it's</p>
<p style="margin-top:0;margin-bottom:0">intent is to take a single-slice 3D Rea file</p>
<p style="margin-top:0;margin-bottom:0">and convert it to 2D.</p>
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<p style="margin-top:0;margin-bottom:0">Assumption is that your elements are </p>
<p style="margin-top:0;margin-bottom:0">aligned such that the "t" direction in the</p>
<p style="margin-top:0;margin-bottom:0">unit cube is aligned with z in physical space.</p>
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<p style="margin-top:0;margin-bottom:0">Paul</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Nek5000-users <nek5000-users-bounces@lists.mcs.anl.gov> on behalf of nek5000-users@lists.mcs.anl.gov <nek5000-users@lists.mcs.anl.gov><br>
<b>Sent:</b> Wednesday, June 13, 2018 3:22:47 PM<br>
<b>To:</b> nek5000-users<br>
<b>Subject:</b> Re: [Nek5000-users] Periodic-AUTO using pretex problem</font>
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<div>Thanks Paul.</div>
<div>Can I convert a 2D mesh with a small thickness in Z direction (3D ) using n2to3?</div>
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<div>The thing is, I use ICEM for meshing and converting it into .msh format. Then I use mshconvert.py for the conversion to NEK5000.</div>
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<div>So for the mshconvert.py I make a small thickness on the mesh to make HEXA8 mesh.</div>
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<div>Or do you have any solution for this too?</div>
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<div>Thank in advance</div>
<div>Sijo</div>
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<div><b>De: </b>"nek5000-users" <nek5000-users@lists.mcs.anl.gov><br>
<b>À: </b>"nek5000-users" <nek5000-users@lists.mcs.anl.gov><br>
<b>Envoyé: </b>Mercredi 13 Juin 2018 21:17:27<br>
<b>Objet: </b>Re: [Nek5000-users] Periodic-AUTO using pretex problem<br>
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<p style="margin-top:0; margin-bottom:0">Dear Sijo,</p>
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<p style="margin-top:0; margin-bottom:0">I would recommend using n2to3 to extrude</p>
<p style="margin-top:0; margin-bottom:0">the 2D geometry</p>
<p style="margin-top:0; margin-bottom:0">and then periodicity will be built in.</p>
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<p style="margin-top:0; margin-bottom:0">Paul</p>
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<div id="x_divRplyFwdMsg" dir="ltr"><span face="Calibri, sans-serif" color="#000000" style="font-size:11pt; color:#000000; font-family:Calibri,sans-serif"><b>From:</b> Nek5000-users <nek5000-users-bounces@lists.mcs.anl.gov> on behalf of nek5000-users@lists.mcs.anl.gov
<nek5000-users@lists.mcs.anl.gov><br>
<b>Sent:</b> Wednesday, June 13, 2018 11:54:13 AM<br>
<b>To:</b> nek5000-users<br>
<b>Subject:</b> [Nek5000-users] Periodic-AUTO using pretex problem</span>
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<div>Hello Neks,<br>
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<div>I was setting up a mesh of NACA foil in 3D with periodic BC on both sides. Since there was some problem with converting BC's from ICEM to NEK5000. I gave a space as BC and then using prex I fill up the empy spaces by using periodic Auto button.</div>
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<div>But its running for a long time. It means its running through the same elements again and again.<br>
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<div>I tired on a simple case (example a cube). it worked well.<br>
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<div>The difference between the NACA case and cube is that, along the spanwise direction of NACA I did not give any elements (i just give a thickness to the mesh) but for the cube there were 2 elements in Z direction.<br>
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<div>So could you please tell me how can I solve this problem?<br>
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<div>Thanks in advance<br>
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<div><br>
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<div>Sijo GEORGE<br>
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