121 Engineering Fluidized Bed Reactors

It must be noted that different flow regimes have quite different hydrodynamic characteristics and therefore, it is essential to identify the desired or prevailing flow regime in the fluidized bed reactor. An ideal situation is to have a comprehensive flow model which will a priori predict the prevailing flow regime. However, knowledge of the prevailing flow regime and development of a computational flow model specifically tailored to the prevailing regime leads to more reliable simulations. Such an approach is used to carry out most simulations of industrial fluidized bed reactors. Before we describe computational models for specific flow regimes, the characteristics of various flow regimes and their identification is discussed briefly below.

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