describing y+ plot

wilson · December 12, 2009, 08:49

How would you describe the following y+ plots? If you had to describe what exactly it is showing and what it tells you.

Thanks

ghorrocks · December 13, 2009, 05:14

Quote:

How would you describe the following y+ plots?

I would describe them as very pretty.

But I would also describe them as a little bit high for most purposes. You probably have not achieved grid independance yet so a finer grid is probably required.

Read the section in the CFX documentation on wall boundary modelling for a more detailed description of y+ and what to do with it.

paulo · December 14, 2009, 06:04

When I perform a y+ analysis, I usually reset the range in the scale bar to the values accepted (e.g., 0 to 100). This way makes the visualization more clear (all the unaccepted values will appear in red, and I can have an idea of the area with 'bad' values).

Best regards,

Paulo Rocha

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December 14, 2009, 06:04		#3
paulo Member Paulo Alexandre Costa Rocha Join Date: Mar 2009 Posts: 71 Rep Power: 17	When I perform a y+ analysis, I usually reset the range in the scale bar to the values accepted (e.g., 0 to 100). This way makes the visualization more clear (all the unaccepted values will appear in red, and I can have an idea of the area with 'bad' values). Best regards, Paulo Rocha