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|Type:||Artigo de periódico|
|Title:||A general model for moving boundary problems application to drying of porous media|
|Abstract:||This work presents a general model to describe momentum, heat and mass transfer for moving boundary problems. The equations are obtained supposing an instantaneous superposition of a moving volume with velocity v(s) (Lagrangean reference frame) over a stationary volume in the stream velocity v (Eulerian reference frame). The set of equations for multicomponent single-phase systems is applied to porous media (multi-phase systems) using the volume-averaging method. Depending on the assumptions about the behaviour of the system, it is possible to obtain the different models proposed in the literature, showing the generality of the model proposed in this work. Numerical results were compared to experimental data of Kaolin drying during the shrinking stage. These results showed a good agreement.|
|Editor:||Taylor & Francis Inc|
|Appears in Collections:||Artigos e Materiais de Revistas Científicas - Unicamp|
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