<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
</head>
<body dir="ltr">
<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr">
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">Dear Sijo,</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<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>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">Paul</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
</div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<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 11:54:13 AM<br>
<b>To:</b> nek5000-users<br>
<b>Subject:</b> [Nek5000-users] Periodic-AUTO using pretex problem</font>
<div> </div>
</div>
<meta content="text/html; charset=utf-8">
<div>
<div style="font-family:arial,helvetica,sans-serif; font-size:12pt; color:#000000">
<div>Hello Neks,<br>
</div>
<div><br>
</div>
<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>
<div><br>
</div>
<div>But its running for a long time. It means its running through the same elements again and again.<br>
</div>
<div><br>
</div>
<div>I tired on a simple case (example a cube). it worked well.<br>
</div>
<div><br>
</div>
<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>
</div>
<div><br>
</div>
<div>So could you please tell me how can I solve this problem?<br>
</div>
<div><br>
</div>
<div>Thanks in advance<br>
</div>
<div><br>
</div>
<div>Sijo GEORGE<br>
</div>
</div>
</div>
</body>
</html>