Análise numérica de jatos turbulentos bifásicos utilizando modelo de fase discreta com refinamento adaptativo de malha

Abstract

Jet flows have been the focus in many studies, which are not concentrated in just a single area. Due to the diversity of applications of this type of flow, a considerable amount of work involving jets can be found in areas such as Fluid Mechanics and Chemical Processes. Some of the justifications, that make this an interesting study, are related mainly to industrial applications, such as aircraft propulsion systems in the aeronautical industry. In addition to the type of flow, the phases of the flow have motivated the performance of several researches that study the interaction between them. A two-phase flow can be separated into liquid-liquid, gas-liquid, liquid-solid, and gas-solid. Gas-solid flows, for example, can be found in several industry problems, such as erosive pipe wear, drying processes, waste treatments, and biomass and coal combustion. Considering the applicability of jet flows and gas-solid flows, the purpose of this work is to study and analyze numerically a flow that encompasses these two characteristics, in other words, a gas-solid flow in a turbulent round jet. Besides that, is added to the goals, the analyzes of the effects of the interaction type considered between the two phases of the flow. For the development of the present work, the simulations were performed using a computational code (MFSim), which has adaptive mesh refinement. The proposed objectives were achieved, since the obtained results were consistent with the literature.