Predictive computational tools for biomass fast pyrolysis in fluidized-bed reactors using particle-resolved direct numerical simulation of reacting gas-solid flow

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2018-01-01
Authors
Peng, Cheng
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Altmetrics
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Abstract

By implementing interphase sub-models obtained form particle-resolved direct numerical simulation(PR-DNS), a new computer fluid dynamics(CFD) two-fluid model for gas-solid reacting system can be established and may well improve the predictive ability. We proved the validity of applying PR-DNS drag model, heat transfer model, pseudo-turbulent velocity fluctuation model and pseudo-turbulent heat flux model into two-fluid model. When applying these PR-DNS submodels into the biomass fast pyrolysis case, the simulated reactor performance and product yields would change while still keep the trend of previous results.

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biomass, CFD, MFiX, OpenFOAM, PR-DNS
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