Estudo experimental e numérico da fluidodinâmica de um leito de jorro.

Abstract

The spouted bed is an equipment widely used in the most diverse branches of the industry due to its wide applicability. This equipment presents some limitations, especially when there is a need for a scale-up, which depends on the geometric and operational conditions. Thus a mathematical model that represents well the phenomena involved assists in the development of more efficient spouted beds. In this sense, the proposal of this work is to evaluate the dynamics of the spouted bed applied to computational uid dynamics. The Eulerian-Lagrangian approach was adopted to evaluate the behavior of the phases. The OpenFOAM software was used to solve mass conservation, momentum and turbulence equations. Two situations were evaluated in the application of the Lagrangian approach. The fi rst DPM and the second MP-PIC. The results of the simulations indicate that the DPM model represented better the behavior of the spouted bed in relation to MP-PIC. The numerical results were compared with the experimental data of the rectangular jet bed (reported in the literature) and conical (data obtained experimentally throughout the research). In both situations, the numerical results showed a good agreement with the experimental data.