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Erschienen in:
2018 | OriginalPaper | Buchkapitel
4. T Processes
verfasst von : Vinay Kumar, Jobst Maßmann, Rainer Helmig
Erschienen in: Thermo-Hydro-Mechanical-Chemical Processes in Fractured Porous Media: Modelling and Benchmarking
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Abstract
Thermal processes in porous media involve both conduction and convection. In low conducting media, or under very low Peclet numbers, the contribution of thermal conduction to the total heat transport might be just as or even more important than the contribution of thermal convection. For a purely diffusive system, the equation for pure conduction gives the total heat flux \(q_\mathsf {T}\) through a given area of the domain
$$\begin{aligned} q_\mathsf {T} = -\lambda _\mathsf {pm} \nabla T \end{aligned}$$