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Hi omid, <br>
<br>
To simulate turbulent flows, I guess you can use the sub routine
turb_outflow(). <br>
Take a look at expansion.usr file in expansion example. <br>
<br>
Best,Kamal<br>
<br>
<br>
<div class="moz-cite-prefix">On 14/04/2014 17:17,
<a class="moz-txt-link-abbreviated" href="mailto:nek5000-users@lists.mcs.anl.gov">nek5000-users@lists.mcs.anl.gov</a> wrote:<br>
</div>
<blockquote
cite="mid:mailman.5517.1397488649.3880.nek5000-users@lists.mcs.anl.gov"
type="cite">
<div dir="ltr"><font face="times new roman, serif">Dear Neks,<br>
<br>
I want to simulate turbulent flow in a stenosis, and use
outflow boundary condition at the outlet. Because of the
possible backflow at the outlet in this case, I want to impose
div U>0 at the last layer of the outlet.<br>
<br>
I have already seen an example in NEK5000 website (peris)
which uses the same boundary condition as I want to impose.<br>
In this example, three subroutines are mentioned as the names
of the following to apply this boundary condition:<br>
<b>fill_div(div)</b></font>
<div><font face="times new roman, serif"><b>set_outflow_dist</b></font></div>
<div><b style="font-family:'times new roman',serif">get_div_const(cdiv)</b></div>
<div><font face="times new roman, serif">Now, I intend to use
the same outlet B.C for a case the same as stenosis in pipe
example. The both examples; pipe and peris, have similar
geometries. So, may I use these subroutines exactly in the
.usr file of stenosis case? or I should do any modification
in this case.<br>
<br>
</font><span style="font-family:'times new roman',serif">Thanks
so much in advance.</span><font face="times new roman,
serif"><br>
<br>
Omid</font><br>
</div>
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