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Hi Paul,<br>
<br>
Thanks for your quick answer.<br>
<br>
The boundary conditions of the box are :<br>
- W on the 4 sides of the box,<br>
- v for the inlet,<br>
- O for the outlet,<br>
- W for the 6 faces of the plate (placed at the center of the box).<br>
<br>
I didn't try to do the mesh by tilting the box to do the incline,
but I don't really see how to make it.<br>
<br>
I'm using a MatLab program found on the mailing list of Nek (<a
href="https://lists.mcs.anl.gov/mailman/htdig/nek5000-users/2010-June/000645.html">https://lists.mcs.anl.gov/mailman/htdig/nek5000-users/2010-June/000645.html</a>).<br>
I noticed that for each blank in the boundary condition the figure
in the 4th and the 5th column were 0 (which seems to correspond to a
BC like W, v or O).<br>
17650 3 <b>0</b> <b>0.00000</b> 0.00000 0.00000 0.00000
<br>
<br>
Best regards,<br>
<br>
Hugo<br>
<br>
<br>
Le 21/05/2012 12:47, <a class="moz-txt-link-abbreviated" href="mailto:nek5000-users@lists.mcs.anl.gov">nek5000-users@lists.mcs.anl.gov</a> a écrit :
<blockquote
cite="mid:mailman.79.1337597267.27041.nek5000-users@lists.mcs.anl.gov"
type="cite">
<br>
Hi Hugo,
<br>
<br>
What are the boundary conditions on your box?
<br>
<br>
Is there a reason not to simply tilt the box and realize
<br>
the incline in this manner?
<br>
<br>
Boundary conditions invariably have 3 characters in Nek.
<br>
I don't know which converter you are using, but " " as
<br>
a bc would translate either to "E " if it's an interior
<br>
element boundary, or to something unknown otherwise.
<br>
<br>
Best regards,
<br>
<br>
Paul
<br>
<br>
On Mon, 21 May 2012, <a class="moz-txt-link-abbreviated" href="mailto:nek5000-users@lists.mcs.anl.gov">nek5000-users@lists.mcs.anl.gov</a> wrote:
<br>
<br>
<blockquote type="cite">Hi Nek's,
<br>
<br>
I'm trying to mesh an inclined flat plate (dimension 1*1*1) in a
large rectangular box ([-5,5]**3).
<br>
I'm using Gambit to mesh the flat plate and then I'm using a
MatLab program found on this website to convert the mesh file
(from Gambit .neu) in the correct format for Nek5000 (.dat).
<br>
<br>
The MatLab conversion don't detect errors. But when I'm checking
the .dat file I see some errors in the fluid boundary condition
part :
<br>
<br>
E 17650 2 17660 4.00000 0.00000 0.00000 0.00000
<br>
17650 3 0 0.00000 0.00000 0.00000 0.00000
<br>
E 17650 4 17640 2.00000 0.00000 0.00000 0.00000
<br>
<br>
There are some blanks in the first column of this file instead
of a letter (E,v,O ...) .
<br>
<br>
Did somebody already saw this error?
<br>
Is there another way to mesh an inclined flat plate?
<br>
<br>
Best Regards,
<br>
<br>
Hugo
<br>
<br>
<br>
</blockquote>
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