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Old   June 12, 2012, 02:24
Default Y plus values
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Osama
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I am modelling 2d flow over a bluff body..
Domain consists of Inlet, outlet, geometry(bluff body;wall), ground(wall) and far0field(wall)

1. I am using standard wall treatment and so the range of Y+ values should be in the range of 30 to 300..My question is should this condition be met on all the walls (ground...far-field..) of the domain or just the geometry(the bluff body) of interest... ?

2. To what extent can the Y+ lie out side this range..? I think its not very easy to get all the Y+ values in this range...

for example for 1 simulation Y+ values on bluff bogy are in the range of 4.5 - 600 and the average is 100....do I need to redo the grid?

I would really appreciate of you could also provide some reference
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Old   June 12, 2012, 04:47
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Sijal Ahmed Memon (turboenginner@gmail.com)
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use scalable wall function instead of standard wall function.
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Old   June 12, 2012, 04:53
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can you please elaborate....does fluent have that?...btw do these values seem good to you or??
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