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CFX Post Define Reynolds Number

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Old   April 11, 2021, 07:48
Default CFX Post Define Reynolds Number
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Alberto Fernandez
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I'm a little bit new in CFX. How can I plot the Re in CFX Post? Be a explicit because, as I said, I'm new.
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Old   April 11, 2021, 12:15
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Quote:
Originally Posted by Trueno View Post
I'm a little bit new in CFX. How can I plot the Re in CFX Post? Be a explicit because, as I said, I'm new.
Hello,

You need to create an expression for the Reynolds number. Go to expressions -> new, then type in Re = (density*Velocityu*(whatever your characteristic length is))/dynamic viscosity in that little box then hit apply. You need to pick the correct variable names (they get italicized). If you want it for a surface/plane you need to call it with the @ symbol i.e. velocity_u()@surface1
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