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<p class="MsoNormal">Dear <span class="spelle">Gmsh</span> developers and users,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I am building an unstructured mesh for a complex geometry which I imported from a step file (attached you can find both the .geo and the .<span class="spelle">stp</span> files I am using).<o:p></o:p></p>
<p class="MsoNormal">I successfully managed to create a good-quality tetrahedral mesh.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">My CFD code, however, handles hexahedral meshes as well (but not hybrid meshes or meshes with prisms and/or pyramids), so I was wondering whether I could recombine the current mesh to get what I want. However, up to now all my attempts
failed.<o:p></o:p></p>
<p class="MsoNormal">Setting “<span class="spelle"><i>Mesh.RecombineAll</i></span><i> = 1</i>;” without any further specification leads to a failing 3D meshing, which anyway contains pyramids, so it is not suitable for me. Considering that the recombined 2D
mesh contains some triangles, following Tutorial 11, I tried the “<span class="spelle"><i>Mesh.RecombinarionAlgorithm</i></span><i> = 2 and 3”</i>, but both fail with “<i>Error : Full-<span class="spelle">quad</span> recombination not ready yet for periodic
surfaces”</i>, which surprised me, because I have no periodic surfaces in the model (and I am sure about this because the .<span class="spelle">msh</span> file of the
<span class="spelle">tets</span> mesh does not contain any $Periodicity info).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So, I was wondering whether you had any other advice to give me in order to obtain the desired hex mesh, if possible at all due to the complex wedge-shape of the domain. FYI, I am using Gmsh 4.3.0.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thanks a lot in advance for your time and help!<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Best regards,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:4.0pt">Marco Tiberga<o:p></o:p></p>
<p class="MsoNormal">PhD candidate<o:p></o:p></p>
<p class="MsoNormal"><span style="color:#00B0F0">Delft University of Technology</span><o:p></o:p></p>
<p class="MsoNormal">Faculty of Applied Sciences<o:p></o:p></p>
<p class="MsoNormal">Radiation Science & Technology Department<o:p></o:p></p>
<p class="MsoNormal">Mekelweg 15, 2629 JB Delft, The Netherlands<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:2.0pt">E-Mail:<span style="color:gray"> </span><a href="mailto:m.tiberga@tudelft.nl">m.tiberga@tudelft.nl</a><o:p></o:p></p>
<p class="MsoNormal"><span lang="NL">Website: </span><a href="http://www.nera.rst.tudelft.nl/" target="_BLANK"><span lang="NL">http://www.nera.rst.tudelft.nl/</span></a><span lang="NL"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL"> <o:p></o:p></span></p>
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