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CFD-DEM simulations of fluidized beds

Grant number: 19/20888-2
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): December 01, 2019
Effective date (End): November 30, 2022
Field of knowledge:Engineering - Mechanical Engineering - Transport Phenomena
Principal researcher:Erick de Moraes Franklin
Grantee:Nicolao Cerqueira Lima
Home Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:18/14981-7 - Modeling of dense granular flows: experiments, numerical simulations and stability analyses, AP.JP2

Abstract

A fluidized bed is basically a suspension of granular matter by an ascendant fluid flow in a vertical tube. Given their high heat and mass transfers, fluidized beds are frequently employed in industry, in processes such as combustion of coal and coating of solids. Uniform fluidized beds are rarely encountered in industrial applications and instabilities, such as transverse waves, bubbles and long bubbles, usually appear. In addition, in polydisperse beds segregation and stratification are common. This project consists of a numerical investigation of the dynamics of grains, bed instabilities, and fluid flow behavior. Simulations will be performed by using CFD-DEM (Computational Fluid Dynamics - Discrete Element Method). The open-source codes OpenFOAM (CFD part) and LIGGGHTS (DEM part) will be used, and the researcher will develop new packages to be incorporated to these codes. From the numerical results, we expect to obtain the trajectories of individual grains, and to identify the fluid-grain, grain-grain and grain wall momentum transfers. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SCHNORR FILHO, ELMAR ANTON; LIMA, NICOLAO CERQUEIRA; FRANKLIN, ERICK M. Resolved CFD-DEM simulations of the hydraulic conveying of coarse grains through a very-narrow elbow. Powder Technology, v. 395, p. 811-821, JAN 2022. Web of Science Citations: 0.
CUNEZ, FERNANDO DAVID; LIMA, NICOLAO CERQUEIRA; FRANKLIN, ERICK M. Motion and clustering of bonded particles in narrow solid-liquid fluidized beds. Physics of Fluids, v. 33, n. 2 FEB 1 2021. Web of Science Citations: 0.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.