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<div class="moz-cite-prefix">What I would suggest would be to setup
a project on the dune user wiki and<br>
giving it public access - that hopefully will give you some help
from the <br>
experienced dune developers if you get stuck. <br>
I'm terrible with naming so will not make a suggestion but <br>
CurvilinearGeometryGrid and simply CurvilinearGrid comes to mind.<br>
Best<br>
Andreas<br>
<br>
On 23.01.2014 10:13, Benedikt Oswald wrote:<br>
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Hello Andreas, thanks.
<div><br>
</div>
<div>Then, I shall do so!
<div><br>
</div>
<div>However, not being an expert in Dune internals programming,</div>
<div>where would I start ?</div>
<div><br>
</div>
<div>would the extension of dune / grid / geometry grid /
coordfunction be the right place ?</div>
<div><br>
</div>
<div>And, more technically speaking, should copy the geometry
grid directory into my</div>
<div>own source tree, implement the things there and, once it
works, submit back to Dune?</div>
<div><br>
</div>
<div>What about naming the new implementation ?</div>
<div><br>
</div>
<div>Greetings, Benedikt</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
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-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>
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<div>On Jan 23, 2014, at 10:04 AM, Andreas Dedner <<a
moz-do-not-send="true"
href="mailto:a.s.dedner@warwick.ac.uk">a.s.dedner@warwick.ac.uk</a>>
wrote:</div>
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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>
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cite="mid:0ABB5AB7-5F44-40A3-8A63-B77E9DE8F37F@lspr.ch"
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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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medium; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing:
normal; line-height: normal; orphans: 2;
text-align: -webkit-auto; text-indent: 0px;
text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px;
-webkit-text-size-adjust: auto;
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break-word; -webkit-nbsp-mode: space;
-webkit-line-break: after-white-space; ">
<div style="font-family: Helvetica; font-size:
medium; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing:
normal; line-height: normal; orphans: 2;
text-align: -webkit-auto; text-indent: 0px;
text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px;
-webkit-text-size-adjust: auto;
-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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<br>
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