Implementation of CHyQMOM in OpenFOAM for the simulation of non-equilibrium gas-particle flows under one-way and two-way coupling

Li, Dongyue; Marchisio, Daniele

doi:10.1016/j.powtec.2021.11.004

Cited by 3 publications

(1 citation statement)

References 51 publications

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“…In the context of LES where several millions of cells are typically employed, OPOSPM seems as a competent numerical method to achieve computational economy. In our previous works, 28,[42][43][44][45] we implemented QMOM/ EQMOM/Generalized-PBE/CHyQMOM, all of them are quite timeconsuming, and it seems to be difficult to apply them to large eddy simulations currently. It is worthy trying a simple method and investigates its capability for industrial applications.…”

Section: Opospmmentioning

confidence: 99%

Numerical treatments for large eddy simulations of liquid–liquid dispersions via population balance equation

2023

Physics of Fluids

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In this work, we employ the two-fluid model under the large eddy simulations (LES) framework to investigate liquid–liquid dispersions in stirred tanks. The population balance equation was solved by the one primary and one secondary particle method, which was proven as identical as one-node quadrature method of moments. First, Aiyer's break-age kernel was investigated for its capability in the context of chemical stirred tank applications [Aiyer et al., “A population balance model for large eddy simulation of polydisperse droplet evolution,” J. Fluid Mech. 878, 700–739 (2019)]. Second, two new methods were proposed to handle the consistency problem and boundedness problem. These numerical problems were shown in our previous studies but had never been discussed in detail. Three test cases were launched, and results showed that our implementation ensures the moments' boundedness. The inconsistency problem was also treated properly. The predicted diameter also agrees well with experiments. Meanwhile, the phase segregation problem as observed in the unsteady Reynolds-Averaged Navier–Stokes simulations disappeared when a LES turbulence model was employed.

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Section: Opospmmentioning

confidence: 99%

Numerical treatments for large eddy simulations of liquid–liquid dispersions via population balance equation

2023

Physics of Fluids

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Discrete-Velocity-Direction Models of BGK-type with Minimum Entropy: I. Basic Idea

2023

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Direct simulation Monte Carlo of the gas-adsorption of particles in gas–particle flows

Zhang

2022

Physics of Fluids

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The acceleration and heating of particles in gas-particle flows represents a general question in fluid mechanics and has been widely studied since the 1920s. However, studies on the gas adsorption-desorption process of a particle in a gas-particle flow are still lacking. In this paper, we aim to introduce a framework with which to explain the gas adsorption-desorption kinetic equilibrium of a spherical particle in a gas-particle flow. We also explore the potential influences of gas adsorption and desorption on the heating and acceleration of a particle in such a flow. We study the gas adsorption-desorption process using the Langmuir adsorption model and the flow method presented by Brancher in a Direct Simulation Monte Carlo (DSMC) simulation. We develop a new model to consider the gas adsorption-desorption kinetic equilibrium on the surfaces of spherical particles in the calculation of the Thermal Accommodation Coefficient (TAC). We observe from the simulations that the trend of gas adsorption is opposite to that of the particle surface temperature. We also find that the efficiency of the convective heat transfer and acceleration of a particle is higher for a particle with a higher adsorption probability on its surface. This paper provides a new framework with which to study the gas adsorption-desorption processes of particles in gas-particle flows. It also inspires for future work on the potential applications of the particle gas adsorption-desorption model in astrophysics.

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Implementation of CHyQMOM in OpenFOAM for the simulation of non-equilibrium gas-particle flows under one-way and two-way coupling

Cited by 3 publications

References 51 publications

Numerical treatments for large eddy simulations of liquid–liquid dispersions via population balance equation

Numerical treatments for large eddy simulations of liquid–liquid dispersions via population balance equation

Discrete-Velocity-Direction Models of BGK-type with Minimum Entropy: I. Basic Idea

Direct simulation Monte Carlo of the gas-adsorption of particles in gas–particle flows

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