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<p>Hi Amitvikram,</p>
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<p>One way to do it by geometry since userbc() has x,y,z info for each GLL point.
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<p>Another way is during the mesh construction: use a specific boundary character codes say 'v01' and 'v02' instead of default 'v ' and then in usrdat2() loop over cbc array to switch them back to 'v ' remembering the local element numbers for a future use
in userbc().</p>
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<p>Aleks<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><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> Monday, November 13, 2017 9:39:12 AM<br>
<b>To:</b> nek5000-users@lists.mcs.anl.gov<br>
<b>Subject:</b> [Nek5000-users] Defining 2 different drichlet velocities in 2 different zones</font>
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<div>Hi all,<br>
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I'm using a geometry where I need to define 2 different velocities at 2 inlets. How do I differentiate the zones in the .usr file where i set up my bcs? Whats the format for this?<br>
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Sincerely,<br>
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<p dir="ltr"><b><font color="#000033">Amitvikram Dutta</font></b></p>
<p dir="ltr">Graduate Research Assistant</p>
<p dir="ltr">Fluid Mechanics Research Lab</p>
<p dir="ltr">University of Waterloo</p>
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