PARTICLE MOTION IN FLUID: ANALYTICAL AND NUMERICAL STUDY

被引：0

作者：

Gram, Annika ^{[1
]}

Silfwerbrand, Johan ^{[1
]}

Lagerblad, Bjorn ^{[1
]}

机构：

[1] Royal Inst Technol KTH, Swedish Cement & Concrete Res Inst CBI, S-10044 Stockholm, Sweden

来源：

APPLIED RHEOLOGY | 2016年 / 26卷 / 02期

关键词：

Bingham model; suspensional flow; cementitious material; ELLIPSOIDAL PARTICLES; SUSPENSIONS; CONCRETE;

D O I：

10.3933/APPLRHEOL-26-23326

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Particle motion in fluid is discussed for one-particle systems as well as for dense suspensions, such as cementitious materials. The difference in large particle motion between larger particles and behaviour of fines (< 125 mu m) is explained, motion of one particle is shown by numerical simulation. It is concluded and highlighted that it is the particular motion of the fines that to a large extent contribute to the rheological properties of a suspension. It is also shown why larger ellipsoidal particles do not necessarily contribute to the increase of viscosity.

引用

页数：7

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