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<p>Hi Paul,</p>
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<p>Thankyou very much for your prompt response,</p>
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<p>I'm tracking an immersed object within the fluid. I can determine whether a velocity point is within the boundary using face normals and dot-products, but I need to know whether it is connected to an outside-boundary cell.</p>
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<p>Cheers,</p>
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<p>Lee</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-bounces@lists.mcs.anl.gov <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> 08 May 2017 13:26:13<br>
<b>To:</b> nek5000-users@lists.mcs.anl.gov<br>
<b>Subject:</b> Re: [Nek5000-users] Adjacent vertices / cells</font>
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Hi Lee,
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<div>The SEM is more function-based than cell based.</div>
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<div>My guess is that Nek might alread support the higher-level</div>
<div> operation you are trying to implement. What is your</div>
<div>objective?</div>
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<div>Best, Paul</div>
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<div id="divRpF546337" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> nek5000-users-bounces@lists.mcs.anl.gov [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, May 08, 2017 6:52 AM<br>
<b>To:</b> nek5000-users@lists.mcs.anl.gov<br>
<b>Subject:</b> [Nek5000-users] Adjacent vertices / cells<br>
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<p>Hi all,</p>
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<p>I'm just wondering if there's a way (given a particular velocity cell's local (i,j,k,e) co-ordinates within the domain) to access the 6 adjacent cells - even if they are located inside a different element.</p>
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<p>If so, how does this deal with cells on the boundary, where there may exist fewer than 6 adjacent cells.</p>
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<p>Many thanks,</p>
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<p>Lee </p>
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