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Simplified Calculation of Mixing and Suspending Processes in Agitated Vessels – Part I: Basis of The Model
Author(s) -
Lohse R.,
Platzer B.
Publication year - 2008
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200800232
Subject(s) - classification of discontinuities , mixing (physics) , mechanics , turbulence , particle (ecology) , basis (linear algebra) , diffusion , flow (mathematics) , turbulent diffusion , statistical physics , physics , thermodynamics , mathematics , geology , geometry , mathematical analysis , oceanography , quantum mechanics
Mixing processes with different stirring systems in agitated vessels are simulated by a multi‐region model. Because of discontinuities at the boundaries of different regions appearing for the already‐existing simple three‐region model, unrealistic values occur during the calculation of the concentration distribution at these locations. Therefore, the region model will be modified at first. The procedure is presented here for the example of a radial flow stirrer, considering the fluid velocity, the turbulence field, the particle diffusion, and the relative fluid‐to‐particle velocity. The modified model is discussed and validated. Thus, the behavior of single particles and particle swarms can be analyzed in the vessel considering different aspects.