CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   STAR-CCM+ (http://www.cfd-online.com/Forums/star-ccm/)
-   -   How to plot u+ Vs Y+ graph? (http://www.cfd-online.com/Forums/star-ccm/109473-how-plot-u-vs-y-graph.html)

TQIM November 19, 2012 02:30

How to plot u+ Vs Y+ graph?
 
I want to plot a graph between u+ and Y+. I m not able to get a plot, can anyone help me out in this..

Regards
TQIM

aqua November 19, 2012 06:52

The same question....please!

Quote:

Originally Posted by TQIM (Post 392862)
I want to plot a graph between u+ and Y+. I m not able to get a plot, can anyone help me out in this..

Regards
TQIM


triple_r November 19, 2012 11:39

What I usually do is to plot velocity as a function of wall distance (define a line probe to get the plot) and export it to excel, and use excel to non-dimensionalize the plot to get u+ vs y+. You will need the shear stress at the wall though, and you can get it by a point probe, or just using the line probe that you have and plotting the wall shear stress on that line. You will get a single value at the wall and zeros every where else.

I don't know if this answered your question or not.

mjthomp3 July 28, 2016 23:24

Quote:

Originally Posted by triple_r (Post 392999)
What I usually do is to plot velocity as a function of wall distance (define a line probe to get the plot) and export it to excel, and use excel to non-dimensionalize the plot to get u+ vs y+. You will need the shear stress at the wall though, and you can get it by a point probe, or just using the line probe that you have and plotting the wall shear stress on that line. You will get a single value at the wall and zeros every where else.

I don't know if this answered your question or not.

what else do you do from there? I did what you said so far but am not getting the correct plot.....

triple_r July 29, 2016 10:46

Quote:

Originally Posted by mjthomp3 (Post 611893)
what else do you do from there? I did what you said so far but am not getting the correct plot.....

What do you get when you follow the steps? Can you give a little bit more detail? I haven't done this for a while now, so can't remember exactly if there were any tricks or something to watch for.

Paulh July 29, 2016 13:42

Check out the STEVE Portal
 
https://steve.cd-adapco.com/articles...-units-u-and-y


All times are GMT -4. The time now is 18:04.