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How can estimate the normal size of near wall cell

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Old   November 13, 2005, 17:25
Default How can estimate the normal size of near wall cell
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I'm simulating a Kaplan hydraulic turbine; can anyone help me to estimate the normal size of the near wall cell for a standard k-e with enanched wall treatment model? I calculated that for a diameter of the rotor of 2 meters and a Re=12*10^6 to obtain a y+=1 the size of the cell would be 0.0000047 meter. It's o.k.? Thank you very much to everyone Emanuele
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