Slow non‐newtonian flow through packed beds: Effect of zero shear viscosity
作者:
A. K. Jaiswal,
T. Sundararajan,
R. P. Chhabra,
期刊:
The Canadian Journal of Chemical Engineering
(WILEY Available online 1993)
卷期:
Volume 71,
issue 4
页码: 646-651
ISSN:0008-4034
年代: 1993
DOI:10.1002/cjce.5450710418
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: fixed bed;pressure drop;drag coefficient;packed bed;non‐Newtonian flow;cell model
数据来源: WILEY
摘要:
AbstractThe slow non‐Newtonian (inelastic) flow through packed beds of mono‐size spherical particles has been simulated by solving the equations of motion numerically. The inter‐particle interactions have been modelled by using a simple cell model. Theoretical estimates of pressure, friction and total drag coefficients as function of the pertinent physical (l≥n≥ 0.2; 0.3 ≤ e ≤ 0.5) and kinematic parameters (0.01 ≤ '≤ 100) for a fixed value of Reynolds number {Re= 0.001) have been obtained. The theoretical predictions reported herein have been validated using the suitable experimental results available in the literature, and the importance of including the zero shear viscosity in analyses for the creeping flow problems is convinci
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