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Scale-up study of high-shear fluid-particle mixing based on coupled SPH/DEM simulation

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Abstract

The purpose of this work is to study the similarity behavior of high-shear fluid-particle interaction with numerical simulations. Specifically, we demonstrate the process in vessels with four-blade impellers. Through the study, we provide guidance for practices scaling from lab tests to industrial level, which is a major interest in industry when computer capacity is limited and large scale tests are prohibitive. The numerical simulation is based on a coupling technique of SPH and DEM. Scale-up tests for particles as well as mixers are presented to illustrate the similarity behavior under certain scaling conditions. We examine the effects when multiple types of particles are included in the fluid as well. Through the tests, similarity behavior is observed in several aspects, such as particle distribution in number, velocity, energy, mass and volume. The results indicate that using less particles to reproduce the original system is a feasible practice.

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Acknowledgements

This work is part of an ongoing project which is funded by U.S. Air Force(Grant No. AF14-AT22). The financial support is greatly appreciated. The author also thank the Extreme Science and Engineering Discovery Environment(XSEDE) for providing the access to the clusters for numerical simulations.

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Authors and Affiliations

  1. Department of Aeronautics and Astronautics, Fudan University, 220 Handan Road, Shanghai, 200433, People’s Republic of China

    Qi Tong

  2. Department of Civil Engineering and Engineering Mechanics, Columbia University, 610 Seeley W. Mudd 500 West 120th Street, New York, NY, 10027, USA

    Qi Tong, Siyu Zhu & Huiming Yin

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  1. Qi Tong
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  2. Siyu Zhu
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  3. Huiming Yin
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Correspondence to Qi Tong.

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Tong, Q., Zhu, S. & Yin, H. Scale-up study of high-shear fluid-particle mixing based on coupled SPH/DEM simulation. Granular Matter 20, 34 (2018). https://doi.org/10.1007/s10035-018-0807-0

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  • DOI: https://doi.org/10.1007/s10035-018-0807-0

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