Continuum theory for dense gas-solid flow: A state-of-the-art review

J Wang - Chemical Engineering Science, 2020 - Elsevier
Gas-solid fluidization technology has been commercialized in many industrial applications
since its implementation in the fluid catalytic cracking process in the early 1940s, however …

Development and verification of anisotropic drag closures for filtered Two Fluid Models

JH Cloete, S Cloete, F Municchi, S Radl… - Chemical Engineering …, 2018 - Elsevier
Over the past decade, filtered Two Fluid Models (fTFMs) have emerged as a promising
approach for enabling fluidized bed simulations at industrially relevant scales. In these …

Consistent closures for Euler-Lagrange models of bi-disperse gas-particle suspensions derived from particle-resolved direct numerical simulations

F Municchi, S Radl - International journal of heat and mass transfer, 2017 - Elsevier
Abstract Particle-Resolved Direct Numerical Simulation (PR-DNS) is employed to simulate
momentum and energy transport in bi-disperse gas-solid suspensions by means of a novel …

On the choice of closure complexity in anisotropic drag closures for filtered two fluid models

JH Cloete, S Cloete, S Radl, S Amini - Chemical Engineering Science, 2019 - Elsevier
Abstract Filtered Two Fluid Models (fTFMs) aim to enable accurate industrial-scale
simulations of fluidized beds by means of closures accounting for the effects of bubbles and …

Development and verification of anisotropic solids stress closures for filtered Two Fluid Models

JH Cloete, S Cloete, S Radl, S Amini - Chemical Engineering Science, 2018 - Elsevier
Abstract Models for predicting flows in large scale fluidized beds, such as filtered Two Fluid
Models (fTFMs), must account for meso-scale phenomena that manifest spontaneously in …

The sensitivity of filtered Two Fluid Model to the underlying resolved simulation setup

JH Cloete, S Cloete, F Municchi, S Radl, S Amini - Powder Technology, 2017 - Elsevier
Abstract The filtered Two Fluid Model (fTFM) is a promising approach for enabling large
scale fluidized bed reactor simulations using multiphase flow modelling. A substantial …

Machine Learning‐Based Filtered Drag Model for Cohesive Gas‐Particle Flows

J Tausendschön, S Sundaresan… - Chemical …, 2023 - Wiley Online Library
The accuracy of filtered two‐fluid model simulations critically depends on constitutive
models for corrections that account for the effects of inhomogeneous structures at the sub …

Momentum, heat and mass transfer simulations of bounded dense mono-dispersed gas-particle systems

F Municchi, S Radl - International Journal of Heat and Mass Transfer, 2018 - Elsevier
Abstract Particle Resolved Direct Numerical Simulation (PR-DNS) is employed to study
momentum, heat and mass transfer in confined gas-particle suspensions. In this work, we …

Generalized multirate models for conjugate transfer in heterogeneous materials

F Municchi, M Icardi - Physical Review Research, 2020 - APS
We propose a novel macroscopic model for conjugate heat and mass transfer between a
mobile region, where advective transport is significant, and a set of immobile regions where …

Spatial filtering for scale bridging and its application to transport in dense particle beds

S Radl, F Municchi - Advances in Chemical Engineering, 2018 - Elsevier
The method of spatial filtering as a universal approach to support closure development for
models of dense fluid–particle systems is presented. Starting from a set of governing …