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<p>Hi Steffen,</p>
<p><br>
</p>
<p>Thanks for bringing this to our attention.</p>
<p><br>
</p>
<p>Adam and I have been looking into this... (no doubt, it's something</p>
<p>stupid done by me awhile back).</p>
<p><br>
</p>
<p>Hope to have it resolved by next week.</p>
<p><br>
</p>
<p>Best,</p>
<p><br>
</p>
<p>Paul</p>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Nek5000-users <nek5000-users-bounces@lists.mcs.anl.gov> on behalf of nek5000-users@lists.mcs.anl.gov <nek5000-users@lists.mcs.anl.gov><br>
<b>Sent:</b> Thursday, September 14, 2017 8:18:27 AM<br>
<b>To:</b> nek5000-users@lists.mcs.anl.gov<br>
<b>Subject:</b> Re: [Nek5000-users] proj_ortho error in pipe flow</font>
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<div class="PlainText">Hi,<br>
<br>
I have made some more tests to find the cause of this issue.<br>
Attached is a laminar pipe flow simulation with temperature and one <br>
passive scalar. The original setup is from Paul's "nusselt.tgz", where <br>
he answered another question of mine.<br>
<br>
I found that I can reproduce the same error I see in my turbulent <br>
simulations when there is an additional passive scalar with a different <br>
type of boundary condition, i.e. Neumann boundary condition at the pipe <br>
wall for temperature and Dirichlet boundary condition for the passive <br>
scalar.<br>
<br>
Can someone please check my setup and tell me why this causes the <br>
projection to fail?<br>
<br>
<br>
I hope to save some computational resources by using the projection. <br>
However, if it is not possible, I will keep param(94) = 0.<br>
<br>
Kind Regards,<br>
Steffen Straub<br>
<br>
-- <br>
Karlsruhe Institute of Technology (KIT)<br>
Institute of Fluid Mechanics<br>
<br>
M.Sc. Steffen Straub<br>
Doctoral Researcher<br>
<br>
Kaiserstraße 10<br>
Building 10.23<br>
76131 Karlsruhe, Germany<br>
<br>
Phone: +49 721 608-43027<br>
E-mail: steffen.straub@kit.edu<br>
Web: <a href="http://www.istm.kit.edu">http://www.istm.kit.edu</a><br>
<br>
KIT – The Research University in the Helmholtz Association<br>
<br>
Since 2010, the KIT has been certified as a family-friendly university.<br>
<br>
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