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A Numerical Model for the Motion of Large Non-Spherical Object in Fluidized Bed

[+] Author Affiliations
Kyohei Higashida, Teppei Yamada, Takuya Tsuji, Toshitsugu Tanaka

Osaka University, Suita, Japan

Paper No. AJKFluids2015-32744, pp. V01AT32A007; 6 pages
doi:10.1115/AJKFluids2015-32744
From:
  • ASME/JSME/KSME 2015 Joint Fluids Engineering Conference
  • Volume 1A: Symposia, Part 2
  • Seoul, South Korea, July 26–31, 2015
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5721-3
  • Copyright © 2015 by JSME

abstract

In practical application of fluidized beds, large solids coexist with small solids. Tsuji et al. (AIChE J., 60(5), pp. 1606–1620, 2014) proposed a numerical model which expresses the behavior of flows including dense solid objects with large size difference based on the DEM-CFD coupling method. In the present study, the model is extended to represent the non-sphericity of large objects by adding a multi-sphere model. Firstly, we perform validation study in a mm-size bubbling fluidized bed and confirm qualitative agreements between the numerical model and the experiment. After that, sinking and floating motion of a large non-spherical object in a fluidized bed are numerically investigated in detail.

Copyright © 2015 by JSME

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