<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Sprechblasentext Zchn";
margin:0cm;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";
mso-fareast-language:EN-US;}
span.SprechblasentextZchn
{mso-style-name:"Sprechblasentext Zchn";
mso-style-priority:99;
mso-style-link:Sprechblasentext;
font-family:"Tahoma","sans-serif";}
span.E-MailFormatvorlage19
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.E-MailFormatvorlage20
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="DE" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D">Hello again,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">I got the desired result using an Extrusion:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:DE"><img width="950" height="456" id="Grafik_x0020_1" src="cid:image001.png@01D24026.60FE5020" alt="cid:image001.png@01D24025.C201A120"></span><span lang="EN-US" style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">However, using Extrusion greatly disagrees with my modelling approach, since I create all required geometry (points, lines, surfaces, volumes) already in advance, before calling gmsh. Afterwards,
I want to mesh the model with gmsh and in a third step assign the created mesh to the existing geometry. Is there any way to create a (semi-)structured mesh using volumes already defined in my geo-file?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Martin<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:DE">Von:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:DE"> gmsh [mailto:gmsh-bounces@ace20.montefiore.ulg.ac.be]
<b>Im Auftrag von </b>Martin.Raedel@dlr.de<br>
<b>Gesendet:</b> Dienstag, 15. November 2016 17:23<br>
<b>An:</b> gmsh@onelab.info<br>
<b>Betreff:</b> [Gmsh] Hex-Mesh problem<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I experience difficulties creating a pure or at least Hex-dominant mesh for the model in the text file. I tried a lot of solver options but even with the frontal algorithm and AllHexas subdivision algorithm I cannot get
a proper mesh. Volume elements are only created for the left and right volume while the boundary surfaces of the middle volume are meshed but no volumes are created and different errors are thrown by gmsh, e.g.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">“Cannot use frontal 3D algorithm with quadrangles on boundary” for frontal 3D<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is there any way that I am missing? Do I somehow have to mesh the middle volume first?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:DE">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:DE">Martin Rädel<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:dimgray;mso-fareast-language:DE">————————————————————————<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Arial","sans-serif";color:dimgray">Deutsches Zentrum für Luft- und Raumfahrt</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:dimgray;mso-fareast-language:DE"> e.V. (DLR)</span><span style="mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:16.0pt"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:dimgray">German Aerospace Center<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:16.0pt"><span lang="EN-US" style="font-size:8.5pt;font-family:"Arial","sans-serif";color:dimgray">Institute of Composite Structures and Adaptive Systems | Structural Mechanics | Lilienthalplatz 7 | 38108 Braunschweig
| Germany<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:dimgray;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:dimgray;mso-fareast-language:DE">Dipl.-Ing.
</span><b><span lang="EN-US" style="font-family:"Arial","sans-serif";color:dimgray">Martin Rädel</span></b><span lang="EN-US" style="font-size:8.5pt;color:dimgray;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:16.0pt"><span lang="EN-US" style="font-size:8.5pt;font-family:"Arial","sans-serif";color:dimgray">Telephone +49 (0)531 295-2048 | Telefax
</span><span lang="EN-US" style="font-size:8.5pt;font-family:"Arial","sans-serif";color:dimgray;mso-fareast-language:DE">+49 (0)531 295-2232</span><span lang="EN-US" style="font-size:8.5pt;font-family:"Arial","sans-serif";color:dimgray"> |</span><span lang="EN-US" style="font-size:8.5pt;font-family:"Arial","sans-serif"">
<a href="mailto:martin.raedel@dlr.de"><span style="color:#005AA5">martin.raedel@dlr.de</span></a><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:16.0pt"><span lang="EN-US" style="font-size:8.5pt;font-family:"Arial","sans-serif""><a href="http://www.dlr.de/"><span style="color:#005AA5">www.DLR.de</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>