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Revista Brasileira de Ciência Tecnologia e Inovação
Article . 2019 . Peer-reviewed
License: CC BY NC SA
Data sources: Crossref
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Estudos de simulação CFD-DEM em um Leito de Jorro Cônico

Authors: José Luiz Vieira Neto; Kassia Graciele Santos; Ronydes Batista Júnior;

Estudos de simulação CFD-DEM em um Leito de Jorro Cônico

Abstract

O Método de Elementos Discretos (DEM) tem se despontado como boa alternativa para modelagem de sistemas particulados densos, já que contabiliza o efeito do tamanho e da forma real da partícula, bem como, as forças partícula-partícula e partícula-parede. Contudo, para cada material é necessário calibrar os parâmetros do modelo de força de contato entre as partículas, geralmente por meio de testes como o ângulo de repouso dinâmico. Neste trabalho, foi realizado um estudo de calibração dos parâmetros do modelo de colisão Mola-Amortecedor para esferas de vidro através de simulações DEM. Para tal, um planejamento composto central (PCC) foi utilizado para avaliar o efeito de cada parâmetro do modelo no ângulo de repouso e encontrar quais os parâmetros afetam significativamente o ângulo simulado. Após esta calibração inicial estes parâmetros foram empregados nas simulações CFD-DEM de um Leito de Jorro Cônico, equipamento este usualmente empregado em aplicações de secagem. Obteve-se uma boa concordância entre dados experimentais e simulados de velocidade e de queda de pressão de Jorro Mínimo que são parâmetros importantes no projeto deste tipo de equipamento.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
hybrid