Engineering applications of typical non-reacting flows using computational fluid dynamics.

Abstract

Computational fluid dynamics (CFD) is an area of study with a wide application in engineering. It has become increasingly popular with greater ease of access to highperformance computers to perform more complex simulations. The application of numerical studies using computational fluid dynamics tools is particularly important in scenarios where experiments are not feasible, in situations in which desired variables cannot be measured experimentally, or even when there is no analytical solution. In view of that, this work aims to adopt CFD techniques in some case studies that are present in chemical engineering: separation of solids in hydrocyclones, gas emission, and two-phase flow jets. The studied cases address different approaches of multiphase flows, turbulence models, and types of constructed mesh. This broadens the discussion regarding the models presented in commercial software and highlights the importance of choosing the appropriate approach to be used. For each case study included in this work, the mathematical models and boundary conditions were defined. The obtained results provided a more detailed understanding of the studied phenomenon and made it possible to evaluate different scenarios from a verified case model, which corroborates the relevance of modeling and simulation using CFD tools for engineering applications.