Abstract
The theoretical derivation of the cuttings transport problem for a two-region system composed of a fluid bed and a stationary bed of drill cuttings, which was considered as a porous medium, was presented in part 1 of this article. The aim of this article is to derive the momentum and mass flux interregion conditions (jump conditions) that contain terms representing the excess surface due to accumulation, convection, stress, and bulk in addition to a term representing the exchange with the surrounding regions. The averaged equations obtained in part 1 of this article and the interregion conditions obtained in this work allow modeling the two-region system described above.
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