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<p style="margin-top:0;margin-bottom:0">Depends on which routine. Suppose userbc:</p>
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<p style="margin-top:0;margin-bottom:0"> if (ifield.eq.1) then ! fluid field</p>
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<p style="margin-top:0;margin-bottom:0"> else ! thermal field</p>
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<p style="margin-top:0;margin-bottom:0"> endif</p>
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<p style="margin-top:0;margin-bottom:0">Or... if in userchk:</p>
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<p style="margin-top:0;margin-bottom:0"> integer e</p>
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<p style="margin-top:0;margin-bottom:0"> do e=1,nelt</p>
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<p style="margin-top:0;margin-bottom:0"> if (e.le.nelv) then ! fluid + temperature</p>
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<p style="margin-top:0;margin-bottom:0"> else ! solid==temperature only</p>
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<p style="margin-top:0;margin-bottom:0"> endif</p>
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<p style="margin-top:0;margin-bottom:0"> enddo </p>
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<p style="margin-top:0;margin-bottom:0">Local elements are sorted: 1...nelv is fluid</p>
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<p style="margin-top:0;margin-bottom:0">1...nelt is thermal</p>
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<p style="margin-top:0;margin-bottom:0">nelv is <= nelt</p>
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<p style="margin-top:0;margin-bottom:0">Paul</p>
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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> Friday, June 1, 2018 1:53:03 PM<br>
<b>To:</b> nek5000-users@lists.mcs.anl.gov<br>
<b>Subject:</b> Re: [Nek5000-users] Mesh with two blocks</font>
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<div class="BodyFragment"><font size="2"><span style="font-size:11pt;">
<div class="PlainText">Thank you for your replies.<br>
<br>
I am actually interested in generating a mesh for a conjugate gradient solve. In the conj_ht example, the solid block is differentiated from the liquid block by testing the element index, i.e., ieg > nelgt. Assuming that I generate a mesh with two blocks that
represent the fluid and solid regions, respectively, how do I access these blocks in the usr file?<br>
<br>
Marco<br>
<br>
> On Jun 1, 2018, at 2:35 PM, nek5000-users@lists.mcs.anl.gov wrote:<br>
> <br>
> Why don't you use the sidesets to set your BC?<br>
> <br>
> -----Original message-----<br>
>> From:nek5000-users@lists.mcs.anl.gov <nek5000-users@lists.mcs.anl.gov><br>
>> Sent: Friday 1st June 2018 20:06<br>
>> To: nek5000-users@lists.mcs.anl.gov<br>
>> Subject: [Nek5000-users] Mesh with two blocks<br>
>> <br>
>> Hi,<br>
>> <br>
>> I would like to get some insights on how Nek5000 deals with meshes that contains more than one block. I generated a 2-D mesh with Cubit and was able to convert it to a re2 format with exo2nek but I do not know how to differentiate each block in the usr file
to set boundary conditions for instance.<br>
>> <br>
>> I went through the examples and did not find anything relevant to my question. Does anybody have experience with multi-block mesh? What is the proper approach when dealing with multi-block meshes in Nek5000?<br>
>> <br>
>> Thanks,<br>
>> <br>
>> Marco<br>
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>> <br>
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