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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New"">Dear All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New"">I have a post-doc modelling a 2D problem on a donut. We have implemented this in YaspGrid with Geometry Grid.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New"">We clearly need to setup periodic boundary conditions.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New"">I thought DUNE handled this much like parallel domain decomposition, so you have to set the overlap to one and tell the grid it is periodic (then that is it!)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New"">From the look of our solutions the periodic boundary conditions have not been implemented correctly<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo3"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Courier New""><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Courier New"">Does YaspGrid ignore the overlap if you run it in sequential mode?<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Courier New""><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Courier New"">Do you have to write a constraint space for periodic boundary conditions in sequential (all the examples of this are assembled elementwise which is not what we want for
periodic boundary conditions!)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New"">Any help would be great! Thanks in advance!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New"">Tim<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">Dr Tim Dodwell<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">Senior Lecturer in Engineering Mathematics<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">Rm 221 - Harrison Building<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">College of Engineering, Mathematics & Physical Sciences<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">University of Exeter<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">Exeter<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">Devon<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">EX4 4PY<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">mail: t.dodwell(at)<a href="http://exeter.ac.uk/"><span style="color:#0563C1">exeter.ac.uk</span></a><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">tel: +44 (0)1392 725899<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">mob: +44 (0)7745 622870<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">web: <a href="http://emps.exeter.ac.uk/engineering/staff/td336"><span style="color:#0563C1">http://emps.exeter.ac.uk/engineering/staff/td336</span></a><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">Papers and Pre-prints: <a href="https://www.researchgate.net/profile/Timothy_Dodwell"><span style="color:#0563C1">@Research-Gate</span></a><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman";mso-fareast-language:EN-GB">Citations: <a href="https://scholar.google.co.uk/citations?user=lPpjRfUAAAAJ&hl=en"><span style="color:#0563C1">@Google-Scholar</span></a><o:p></o:p></span></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
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