Numerical simulation of flow in fluidized beds

Bauer, Petr; Beneš, Michal; Fučík, Radek; Dieu, Hung Hoang; Klement, Vladimír; Maca, Radek; Mach, Jan; Oberhuber, Tomáš; Strachota, Pavel; Žabka, Vítězslav; Havlena, Vladimı́r

doi:10.3934/dcdss.2015.8.833

Cited by 3 publications

(1 citation statement)

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“…Our modeling technique is based on the multi-phase continuum dynamics -see, e.g. [5,12], involving the conservation laws of the corresponding quantities, the constitutive laws, and empirical relations (see, e.g., [2,7,3]).…”

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confidence: 99%

Numerical simulation of fluidization for application in oxyfuel combustion

Beneš¹,

Eichler²,

Klinkovský³

et al. 2021

Discrete &Amp; Continuous Dynamical Systems - S

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This paper is concerned with the simulation of multiphase flow hydrodynamics in an experimental oxyfuel fluidized bed combustor designed for biomass fuels. The aim is to perform cross-validation between several models and solvers that differ in the description of some phenomena in question. We focus on the influence of turbulence modeling, inter-phase drag force models, the presence of biomass in the mixture. Also the possibility to simplify the full 3D description to a quasi-1D model is tested. However, the results indicate that such simplification is not suitable for chaotic phenomena in considered scenarios. The models were developed using ANSYS Fluent and OpenFOAM CFD software packages as well as our in-house CFD code CFBSim. The quantities relevant for comparison (the densities of the dispersed solid phases and the phase velocities) are presented in the form of cross-section averaged vertical profiles.

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confidence: 99%