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<div class="moz-cite-prefix">Hi Benedikt.<br>
You would need to extend GeometryGrid (something many of us would<br>
really appreciate). Basically GeometryGrid replaces the geometries
of the host grid<br>
using the GenericGeometries which are only "linear". This part of
GeometryGrid<br>
would need to be replaced with something higher order, e.g., some
curvilinear approximation.<br>
Best<br>
Andreas<br>
<br>
On 23.01.2014 08:32, Benedikt Oswald wrote:<br>
</div>
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type="cite">
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<div>Dear Dune</div>
<div><br>
</div>
<div>as it happens we are forced to consider drastic steps to
increase the efficiency of our electromagnetic solvers,</div>
<div>especially in the frequency domain.</div>
<div><br>
</div>
<div>Recently, Peter Bastian suggested we use curvilinear elements
in order to model our curved geometry and domain</div>
<div>boundaries. In fact, we believe that this will help us
enormously since the element count will be much reduced.</div>
<div><br>
</div>
<div>Peter also suggested we use the geometry grid on top of
ALUGrid in order to achieve this.</div>
<div><br>
</div>
<div>Now, my concrete questions is: given an existing curvilinear
mesh (e.g. from gush), how would we do this ?</div>
<div><br>
</div>
<div>I read that geometry grid manages the vertices of the
underlying grid, but, a curvilinear tetrahedral element has</div>
<div>vertices not only in the corners but also on the edges, faces
and inside the volume.</div>
<div>Perhaps my question is trivial, nevertheless, I'd appreciate
your suggestions.</div>
<div><br>
</div>
<div>I should say that gmsh is capable of generating quite nice
curvilinear tetrahedral meshes, at least up to 3rd order.</div>
<div><br>
</div>
<div>Greetings and thanks in advance, Benedikt</div>
<div><br>
</div>
<div><br>
</div>
<br>
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<div style="color: rgb(0, 0, 0); font-family: Helvetica;
font-size: medium; font-style: normal; font-variant: normal;
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normal; orphans: 2; text-align: -webkit-auto; text-indent:
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-webkit-text-stroke-width: 0px; word-wrap: break-word;
-webkit-nbsp-mode: space; -webkit-line-break:
after-white-space; ">--------------------------------------------------------------------------------------------------------------------------------------------------------------<br>
Dr. sc. techn. Benedikt Oswald - first engineer - LSPR AG -
phone - +41 43 366 90 74<br>
Technoparkstrasse 1, CH-8005 Zürich, <a
moz-do-not-send="true"
href="mailto:benedikt.oswald@lspr.ch">benedikt.oswald@lspr.ch</a><br>
--------------------------------------------------------------------------------------------------------------------------------------------------------------</div>
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