<html dir="ltr">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" id="owaParaStyle"></style>
</head>
<body fpstyle="1" ocsi="0">
<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">
<div><br>
</div>
Hi Andrew,
<div><br>
</div>
<div>torq_calc (which also computes drag as a byproduct) will generate integral quantities over several</div>
<div>objects.</div>
<div><br>
</div>
<div>So, you could have (say) the upper and lower wall as two separate objects, and you can get the</div>
<div>drag on each. This amounts to 2 vector quantities (3 numbers each: fx,fy,fz) at each time step</div>
<div>and is written out by node 0.</div>
<div><br>
</div>
<div>It sounds like you are asking for something different, e.g., the wall shear stress as a function of </div>
<div>position --- that requires a bit more sophistication but is certainly accessible.</div>
<div><br>
</div>
<div>What are you looking for?</div>
<div><br>
</div>
<div>Best, Paul</div>
<div><br>
<div style="font-family: Times New Roman; color: #000000; font-size: 16px">
<hr tabindex="-1">
<div id="divRpF225484" 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> Sunday, July 10, 2016 12:39 PM<br>
<b>To:</b> nek5000-users@lists.mcs.anl.gov<br>
<b>Subject:</b> [Nek5000-users] WSS on several processors<br>
</font><br>
</div>
<div></div>
<div>
<div dir="ltr">
<div dir="ltr" style="font-size:12.8px">
<div>Hi Neks, </div>
<div><br>
</div>
<div>I am working with two routines (torq_calc and drgtrq )in navier5.f. I'm trying to collect viscous drag's values on the wall (in all the grid points) and write them into a file. If I run a calculation on the one CPU it works great, but it doesn't work
with several processors: I have an impression that the information is written into result file from only one processors. How can I fix this problem?</div>
<div><br>
</div>
<div>
<div style="color:rgb(80,0,80); font-size:12.8px"><span lang="en">Thank you for any suggestion, <br>
</span></div>
<span lang="en" style="color:rgb(80,0,80); font-size:12.8px">Andrew</span><br>
</div>
</div>
<div class="" style="margin:2px 0px 0px; font-size:12.8px"></div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>