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Old   June 2, 2009, 04:16
Default Reynolds contour plotting in cfx-post
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hi:
i want to plot a contour plot for reynolds number in default domain in cfx-post...how can i do it???
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Old   June 2, 2009, 20:02
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Hi,

Define a function for Reynolds number, then it will appear as a variable you can do contours with. Have a look in the tutorials for how to do this.

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Old   June 3, 2009, 01:49
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hi Glenn Horrocks and thank you very much for all your helps:
the geometry is very complicated and i cant define any effective length in reynolds num.also the direction changes and i cant use parameters like y or z as diameter in CEL.
the tutorial is very simple and i cant use it.
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Old   June 3, 2009, 08:34
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Hi,

Well if you can't define a length scale then how can you work out a Reynolds Number?

I am guessing you are looking for the surface Re number to look for turbulence transition or turbulent boundary layer growth along a surface. This would be tricky to visualise on an arbitrary geometry. If you are using the turbulence transition model I think one of the variables modelled is in effect the surface Re number, that might help. Otherwise you might be able to define a length scale using surface streamlines where you use the position along the streamline as your length scale. Just an idea, it would be tricky to get working.

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