<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=GB2312" http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
<p><font face="Times New Roman, Times, serif">Hi Daniel,<br>
If you want to keep quadrangles as boundary of your cube, you should
use Layers and Recombine when you extrude. Your mesh will be then fully
structured.<br>
</font></p>
<p><font face="Times New Roman, Times, serif">Other possibility for
getting the 3D mesh would be not recombining the faces of your cube and
just extrude as you've done in your file. <br>
In that case, you must use Netgen for meshing. You can just add:<br>
Mesh.Algorithm3D = 4;<br>
to your file.<br>
Regards,<br>
Ruth<br>
</font></p>
<br>
Daniel WEI wrote:
<blockquote cite="mid:200811160017581729685@gmail.com" type="cite">
<meta content="text/html; charset=gb2312" http-equiv="Content-Type">
<meta name="GENERATOR" content="MSHTML 8.00.6001.18241">
<link rel="stylesheet"
href="BLOCKQUOTE%7Bmargin-Top:%200px;%20margin-Bottom:%200px;%20margin-Left:%202em%7D">
<div><font face="Verdana" size="2">
<div>Error : Cannot tetrahedralize volume with quadrangles on boundary</div>
<div> </div>
<div>Dear developer!</div>
<div> </div>
<div>A nice day to you!</div>
<div>I am new to GMSH, but I like it very much, it's beautiful and very good, very comfortable to use! I enjoy in mousing over
it.</div>
<div> </div>
<div>Now I met a problem when I am trying to mesh a wall-mounted cube in CFD, more defnitely I am using DES (Detached eddy simulation).</div>
<div>I need to know exactly the spacing in streamwise and spanwise, and of course in the direction normal to the wall.</div>
<div>So, I use structured mesh near the cube by putting the cube in a littel larger-size box, and within this box, the mesh is structured so that I can easily modify it in the future.</div>
<div>But Outside of the box, that is in the wind-tunnel, I want to use unstructured grids. However I met many errors here. (2D mesh is ok, but 3D crashed!)</div>
<div> </div>
<div>Error : Cannot tetrahedralize volume with quadrangles on boundary</div>
<div> </div>
<div>The geo file is attached! Could you give me some help?</div>
<div>And Could you tell me how to effeciently write a geo file as in my case, and
am I in a good style for GMSH-scripting?</div>
<div> </div>
<div> </div>
<div>Thanks in advance!</div>
<div>Regards,</div>
<div> </div>
<div> </div>
<div> </div>
<div> </div>
<div> </div>
<div> </div>
</font></div>
<div> </div>
<div align="left"><font color="#c0c0c0" face="Verdana" size="2">2008-11-16
</font></div>
<font face="Verdana" size="2">
<hr style="width: 122px; height: 2px;" align="left" size="2">
<div><font color="#c0c0c0" face="Verdana" size="2"><span>Daniel WEI</span>
</font></div>
</font>
<pre wrap="">
<hr size="4" width="90%">
_______________________________________________
gmsh mailing list
<a class="moz-txt-link-abbreviated" href="mailto:gmsh@geuz.org">gmsh@geuz.org</a>
<a class="moz-txt-link-freetext" href="http://www.geuz.org/mailman/listinfo/gmsh">http://www.geuz.org/mailman/listinfo/gmsh</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Dr. Ir. Ruth V. Sabariego
University of Liege, Institut Montefiore,
Dept. of Electrical Engineering & Computer Science,
Applied & Computational Electromagnetics (ACE),
Sart Tilman Campus, Grande Traverse, 10 (B28), B-4000 LIEGE, Belgium
phone: +32-4-3663737 -- fax: +32-4-3662910 -- <a class="moz-txt-link-freetext" href="http://elap.montefiore.ulg.ac.be/">http://elap.montefiore.ulg.ac.be/</a></pre>
</body>
</html>