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Fluid flow through compressible soft particle beds
Author(s) -
Tung KuoLun,
Chen LiangHsun,
Chen YiRui,
Lin YuShen,
Lin YiFeng,
Li YuLing
Publication year - 2016
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.15138
Subject(s) - pressure drop , compressibility , mechanics , particle (ecology) , compressible flow , drop (telecommunication) , flow (mathematics) , fluid dynamics , particle size , computational fluid dynamics , materials science , thermodynamics , chemistry , geology , mechanical engineering , engineering , physics , oceanography
The fluid flow through a soft particle bed was studied theoretically and experimentally in this report. Several correction factors were introduced to modify the Ergun equation and account for the deformed shape and reduced volume of compressed particles in a compressible soft particle bed. To acquire the correction factors, both uni‐compression tests and computational fluid dynamics simulation methods were used. The pressure drop estimated from the customized modeling equation was further compared with the experimental data obtained from a bed composed of calcium‐alginate gel particles. In contrast to the conventional Ergun equation, the pressure drop estimated from the customized modeling equation was highly consistent with the experimental data. The result suggests that the customized modeling equation is a convenient tool for accurately predicting the pressure drop across a compressible soft particle bed. © 2016 American Institute of Chemical Engineers AIChE J , 62: 1716–1727, 2016