Work

Void Fraction and Interfacial Friction in Spherical Particle Beds under Stagnant Liquid Conditions

Year: 2025

Type: article

Abstract: In this study, we measured pressure gradient dP/dz and void fraction αG in spherical particle beds with particle diameters of 4 and 8 mm under stagnant liquid conditions. We obtained an empirical correlation and its uncertainty for the void fraction by using the data reported by Tutu et al. (1984), Chikhi et al. (2016) and ours. The uncertainty of the obtained αG correlation was relatively small and ±2s = ±0.049 (where s is the standard deviation). However, the uncertainty band for the computed dP/dz was relatively large due to the uncertainty in the void fraction, ±2s = ±0.049. Effects of the interfacial friction Fi on computation of dP/dz were also discussed.

Source: JAPANESE JOURNAL OF MULTIPHASE FLOW

DOI: 10.3811/jjmf.2025.011

Authors: Michio MURASE, Koji NISHIDA, Toshiya TAKAKI, Ryo KURIMOTO, Kosuke HAYASHI, Akio TOMIYAMA

Institutions: Institute of Nuclear Safety System, Inc. (Japan), Kobe University

Language: English

Topic: Granular flow and fluidized beds

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W7089158434

FWCI:

Cites: 12

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