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-   -   The unit of thermal conductivity when adding temperature equation to icoFoam? (http://www.cfd-online.com/Forums/openfoam/113699-unit-thermal-conductivity-when-adding-temperature-equation-icofoam.html)

mxylondon February 25, 2013 09:31

The unit of thermal conductivity when adding temperature equation to icoFoam?
 
Hi, guys, I have a question when I add temperature equation to icoFoam.
By OpenFOAM Wiki, it's said that, we need to add a new transport property related to the thermal diffusion, like ' DT [0 2 -1 0 0 0 0] 0.002;'
Actually, it is thermal conductivity. But I'm really confused, why it has the same unit as the kinematic viscosity?

Cheers!

akidess February 25, 2013 12:01

Study the equations again. DT is as stated thermal diffusivity, and as any other diffusivity it has units m2/s.

mxylondon February 26, 2013 06:26

Oh...My fault...It's not conductivity.
Thank you very much!!!!!


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