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Old   January 22, 2013, 07:56
Default diffusion coefficient
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bitak
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hello.
how i can enter diffusion coefficient (m^2 s^-1) in cfx solver?
thanks
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Old   January 22, 2013, 08:29
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0.002 [m^2 * s^-1]
or
0.002 [m^2 / s^1]
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Old   January 22, 2013, 18:11
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there are same, no?
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Old   January 24, 2013, 17:22
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yes, exactly the same, but you can do it either way.
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Old   January 25, 2013, 01:27
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Thank you.
but infact my question is : when in article talk about diffusion coefficient, for transfer particle in the tube and calculate concentration of oarticles on tube wall, how i can enter this coeffichent in solver cfx?
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Old   January 25, 2013, 02:16
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You would model the scalar as an additional variable and in the domain you would enter the kinematic diffusivity of the scalar.
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Old   January 25, 2013, 09:07
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really thank you.
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