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<p>Doesn't outpost() (userchk subroutine) inside a conditional
statement address your issue? <br>
Something like (if you have to flow information at istep=10):</p>
<p> if (istep .eq. 10) then<br>
outpost(vx,vy,vz,pr,t,'vel')<br>
endif<br>
</p>
<br>
<div class="moz-cite-prefix">On 02/21/2018 04:22 PM,
<a class="moz-txt-link-abbreviated" href="mailto:nek5000-users@lists.mcs.anl.gov">nek5000-users@lists.mcs.anl.gov</a> wrote:<br>
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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you for the reply. I meant the
instantaneous velocity field for the domain
(u(x,y,z),v(x,y,z),w(x,y,z)) at some certain time step
(istep).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Tim<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div class="MsoNormal" style="text-align:center" align="center">
<hr style="color:black" size="2" align="center"
noshade="noshade" width="100%">
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<p class="MsoNormal"><o:p> </o:p></p>
<pre><span style="color:black">do you mean how to write out an instantaneous field, or to generate an <o:p></o:p></span></pre>
<pre><span style="color:black">initial condition?<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">On 2018-02-21 11:55, <a href="https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users" moz-do-not-send="true">nek5000-users at lists.mcs.anl.gov</a> wrote:<o:p></o:p></span></pre>
<pre><span style="color:black">><i> The subroutine useric (in the usr file) is used to specify the initial <o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> condition for the whole domain.<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> On 21 Feb 2018, at 05:41, "<a href="https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users" moz-do-not-send="true">nek5000-users at lists.mcs.anl.gov</a> <o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <mailto:<a href="https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users" moz-do-not-send="true">nek5000-users at lists.mcs.anl.gov</a>>" <o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <<a href="https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users" moz-do-not-send="true">nek5000-users at lists.mcs.anl.gov</a> <o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <mailto:<a href="https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users" moz-do-not-send="true">nek5000-users at lists.mcs.anl.gov</a>>> wrote:<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <o:p></o:p></i></span></pre>
<pre><span style="color:black">>><i> Dear Nek users,<o:p></o:p></i></span></pre>
<pre><span style="color:black">>><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">>><i> Could anyone please teach me how to generate an instantaneous velocity <o:p></o:p></i></span></pre>
<pre><span style="color:black">>><i> field for the whole domain (let’s say for just one time step and have <o:p></o:p></i></span></pre>
<pre><span style="color:black">>><i> it stored in a .dat file) for case of turbChannel. I have been <o:p></o:p></i></span></pre>
<pre><span style="color:black">>><i> tracking/reading many subroutines and files, but I could not find the <o:p></o:p></i></span></pre>
<pre><span style="color:black">>><i> location where I could add lines to generate the instantaneous <o:p></o:p></i></span></pre>
<pre><span style="color:black">>><i> velocity profile.<o:p></o:p></i></span></pre>
<pre><span style="color:black">>><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">>><i> Thank you.<o:p></o:p></i></span></pre>
<pre><span style="color:black">>><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">>><i> Tim</i><o:p></o:p></span></pre>
<p class="MsoNormal"><o:p> </o:p></p>
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