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Old   August 16, 2010, 14:17
Default Turbulent thermal diffusivity
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Vitor Braga
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does anyone know an equation/a way to initialize the turbulent thermal diffusivity (alphat)?

For example, if I want to initialize its value at the inlet of a pipe with a known velocity.

In other words, how to initialize the turbulent thermal diffusivity (alphat)?
Is there a straightforward way?

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Old   August 22, 2010, 12:05
Default Same doubt
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Nilesh Rane
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I am also facing same doubt. Please can anyone shade some light on this???
Imagination is more important than knowledge..
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Old   August 22, 2010, 15:43
Paulo Bufacchi
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Hi Vitor,

I don't know what application you are running, but fireFoam has a file named alphaSgs (turbulent thermal diffusivity) under directory 0 in smallPoolFire2D tutorial.

Maybe it fits your need.

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