<div dir="ltr"><div><div><div><div>Hi all,<br><br></div>I understand that a call to avg_all computes the running averages of u, u^2 etc and then dumps the results after a fixed timestep as given by param68.<br><br> What I do not understand is where in the domain does this computation take place? Does it average all the points in the domain? I understand how this would by useful in the turbChannel case where fully developed turbulence covers essentially the entire domain. However in cases where the flow develops turbulence within the domain and thus there are strong regions of turbulent anisotropy, it would be imperative to calculate these running averages along a specified plane or line. I did see some code defining these in the turbChannel example <br></div>viz. common /plane/ uavg_pl(ly1*lely)<br> $ , urms_pl(ly1*lely)<br> $ , vrms_pl(ly1*lely)<br> $ , wrms_pl(ly1*lely)<br> $ , uvms_pl(ly1*lely)<br> $ , yy(ly1*lely)<br> $ , w1(ly1*lely),w2(ly1*lely)<br> $ , ffx_avg, dragx_avg <br><br><br></div>but I'm not exactly sure how this is defining a particular section of the geometry. In my particular case I'm trying to simulate a rectangular jet exhausting into a cuboidal domain. How can I set avg_all to compute the said average along a streamwise plane of the jet for example?<br><br></div>Sincerely,<br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><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>Multi-Physics Interaction Lab</p>
<p dir="ltr">University of Waterloo</p>
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