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need help! range of y plus and results of simulations

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Old   January 4, 2014, 22:23
Default need help! range of y plus and results of simulations
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faza dzulhimam
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my simulation is about:
1. plain tube
2. turbulent flow
3. standard k - epsilon model
4. the working fluid is water
5. near wall treatment (STANDARD WALL FUNCTIONS)

my problems are:
1. i get y plus in range 19 - 20, while for standard wall functions y plus must be 30 - 60, how to increase y plus for getting y plus range in standard wall functions ?

2. what is the best mesh for circular tube?

many thanks for the help
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Old   January 7, 2014, 03:17
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duri
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Double your mesh first cell height
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