Measuring the viscosity of large-particle (and flocculated) suspensions - a note on the necessary gap size of rotational viscometers

被引：56

作者：

Barnes, HA ^{[1
]}

机构：

[1] Unilever Res Lab, Wirral CH63 3JW, Merseyside, England

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 2000年 / 94卷 / 2-3期

关键词：

suspensions; wall effects; large particles; rotational viscometry;

D O I：

10.1016/S0377-0257(00)00162-2

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A simple theory is presented to account for the viscometer walls effects encountered when measuring suspensions of large particles (or flocs). The often-recommended minimum ratio of gap-to-particle size ratio of 10:1 is shown to be appropriate for phase volumes up to 25%, but above this value, the ratio needs to be greater. The theory is supported by recent experimental evidence. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：213 / 217

页数：5

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