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Anisotropic mass diffusivity

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Old   January 15, 2011, 18:50
Default Anisotropic mass diffusivity
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I am using a "species transport" model to describe two different gases flowing through a porous medium in an axisymmetric analysis. FLUENT gives you the option of selecting a "mass diffusivity (m2/s)" under "materials->mixture-template". This mass diffusivity term assumes isotropic mass diffusivity. I am interested in separating the radial and axial mass diffusivity terms. Does anyone have any suggestions on how to separate these terms?

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Old   January 15, 2011, 23:42
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diffusivity, direction, mass, radial, vector

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