Piv Experiments and Cfd Simulations of Liquid-Liquid Mixing in a Planetary Centrifugal Mixer [Pcm]
In: 2022; (2022)
Online
Elektronische Ressource
Zugriff:
Recently, a new type of blade-free mixer, namely the planetary centrifugal mixer (PCM), has aroused widespread interest owing to its advantages such as high efficiency and non-pollution. The aim of this study is to simulate the macro- and micro-mixing characteristics of two miscible liquids in a PCM by using the sliding mesh approach. Particle image velocimetry (PIV) experiments are performed to qualitatively and quantitatively validate the computational fluid dynamics (CFD) model. The mixing index and the potential of diffusive mixing based on the intensity and scale of segregation are employed to accurately evaluate the mixing homogeneity. The results show that the mixing efficiency of the PCM is very remarkable, and the mixing can be completed by 95% in 10 seconds in most cases. Chaotic flows and vortices are observed in the PCM, which play a promoting role in mixing. After an optimization of the design of PCM, the mixing time is reduced by 54%, while the extensional efficiency, the velocity magnitude and the strain rate are increased by 38%, 35% and 58%, respectively
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Piv Experiments and Cfd Simulations of Liquid-Liquid Mixing in a Planetary Centrifugal Mixer [Pcm]
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Autor/in / Beteiligte Person: | Shen, Baojun ; Zhan, Xiaobin ; Sun, Zhibin ; He, Yu ; Long, Jiecai ; Li, Xiwen |
Quelle: | 2022; (2022) |
Veröffentlichung: | [S.l.]: SSRN, 2022 |
Medientyp: | Elektronische Ressource |
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