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Old   September 7, 2020, 17:49
Question Question on Convective augmentation factor
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Hello there,
Iím currently trying to simulate a case where a porous media is adjacent to a solid wall using Fluent. The goal is to predict the wall temperature profile. With non-isothermal flow passing through the porous media, there is heat transfer between the porous media and the wall.
1.png

Because of the presence of porous media, the heat transfer between the fluid and the wall will be augmented.
At the interface, is the thermal boundary condition write as CAF*Kf_eff*dTf/dn=Kw*dTw/dn ?
(CAF is the convective augmentation factor, Kf_eff is the effective conductivity of fluid phase in porous media, Tf is the fluid phase temperature, Kw is the wall thermal conductivity, Tw is the wall temperature)
Is it appropriate to use CAF in this situation ?
Is there any study use the convective augmentation factor to predict the temperature profile of the bounding wall?
(I didnít find any study doing that, only several try to characterize the value of CAF.)

Thanks a lot for your help!
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cht coupling, fluent, heat tranfer, porous, transient

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