<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 26 Jul 2018, at 08:24, Nan Li <<a href="mailto:linan88433189@gmail.com" class="">linan88433189@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">
Hello everyone,<br class=""><br class="">I am trying to mesh a cross-cavity with high order tetrahedron element (tetrahedron 10) and apply periodic boundary condition in x direction and y direction. As the periodic boundary condition has nothing to do with the cavity, you can consider the cross-cavity as a cube. <br class=""><br class="">I have used 'periodic surfaces' and find the mesh of the two opposite surface is identical. So far so good. Then when I look into the .msh file and try to extract the point pairs in $Periodic $EndPeriodic, I find that only the nodes on the vertex of triangle are listed there. The internal nodes for each edge are not listed. <br class=""><br class="">Does anyone have successfully extract the periodic pairs of internal nodes of each edge ?<br class=""><br class=""></div></div></blockquote><div><br class=""></div><div>Indeed we only keep track of the main vertices in the Periodic section. Once you have those you can get the element correspondance and match the high-order ones.</div><div><br class=""></div><div>@Koen, Amaury - should we also add the high-order vertices in the correspondance tables ?</div><div><br class=""></div><div>Christophe</div><div><br class=""></div><br class=""><blockquote type="cite" class=""><div class=""><div dir="ltr" class="">Thanks. <br class=""><br class="">Nan LI</div>
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