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Forum: CFX

July 16, 2013, 19:23

Replies: 10

reducing Y Plus value

Views: 6,812

Posted By ghorrocks

You have shown that a factor of 40 change in near...

You have shown that a factor of 40 change in near wall resolution has almost no change in the results. That looks like pretty good evidence to me that you do not need to refine the near wall mesh...

Forum: CFX

July 16, 2013, 19:02

Replies: 10

reducing Y Plus value

Views: 6,812

Posted By ghorrocks

You need to do a sensitivity analysis to...

You need to do a sensitivity analysis to determine if your y+ is a problem. If your simulation does not have high sensitivity to the boundary layer then you are probably fine, but if it is sensitive...

Forum: CFX

July 15, 2013, 20:26

Replies: 10

reducing Y Plus value

Views: 6,812

Posted By ghorrocks

Why is y+ = 3000 wrong? What do you expect it to...

Why is y+ = 3000 wrong? What do you expect it to be? What are you modelling anyway?

Are you sure you are using the correct units?

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