Simulation of fine particle formation by precipitation using computational fluid dynamics

Canadian Journal of Chemical Engineering - Tập 78 Số 5 - Trang 983-993 - 2000
Damien Piton1, Rodney O. Fox1, Bruno Marcant2
1Department of Chemical Engineering, Iowa State University, 2114 Sweeney Hall, Ames, IA 50011-2230, USA
2Rhodia Recherches, 52 Rue de la Haie Coq, 93308 Aubervilliers Cedex, France

Tóm tắt

AbstractThe 4‐environment generalized micromixing (4‐EGM) model is applied to describe turbulent mixing and precipitation of barium sulfate in a tubular reactor. The model is implemented in the commercial computational fluid dynamics (CFD) software Fluent. The CFD code is first used to solve for the hydrodynamic fields (velocity, turbulence kinetic energy, turbulent energy dissipation). The species concentrations and moments of the crystal size distribution (CSD) are then computed using user‐defined transport equations. CFD simulations are performed for the tubular reactor used in an earlier experimental study of barium sulfate precipitation. The 4‐EGM CFD results are shown to compare favourably to CFD results found using the presumed beta PDF model. The latter has previously been shown to yield good agreement with experimental data for the mean crystal size at the outlet of the tubular reactor.

Từ khóa


Tài liệu tham khảo

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Thông tin xuất bản

Canadian Journal of Chemical Engineering

Tập 78 Số 5

983-993

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