Viscosity of carbon nanotubes water-based nanofluids: Influence of concentration and temperature

被引：239

作者：

Halelfadl, Salma ^{[1
]}

Estelle, Patrice ^{[2
]}

Aladag, Bahadir ^{[3
]}

Doner, Nimeti ^{[3
]}

Mare, Thierry ^{[1
]}

机构：

[1] Univ Rennes 1, IUT Rennes, Equipe Mat & Thermorheol, UEB,LGCGM EA3913, F-35704 Rennes 7, France

[2] Univ Rennes 1, IUT St Malo, Equipe Mat & Thermorheol, UEB,LGCGM EA3913, F-35417 St Malo, France

[3] Dumlupinar Univ, Dept Mech Engn, TR-43270 Kutahya, Turkey

来源：

INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2013年 / 71卷

关键词：

Viscosity; CNT nanofluid; Shear-thinning; Agglomerates; Temperature; EFFECTIVE THERMAL-CONDUCTIVITY; AQUEOUS SUSPENSIONS; HEAT-TRANSFER; AGGREGATION KINETICS; RHEOLOGICAL BEHAVIOR; SHEAR RATE; FLOW;

D O I：

10.1016/j.ijthermalsci.2013.04.013

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experimental results on the steady-state viscosity of carbon nanotubes water-based nanofluids are presented considering the influence of particle volume fraction and temperature ranging from 0 to 40 degrees C. The suspensions consist of multi-walled carbon nanotubes dispersed in de-ionized water and they are stabilized by a surfactant. The aspect ratio of nanotubes is close to 160 and the particle volume fraction varies between 0.0055% and 0.55%. It is shown that the nanofluids behave as shear-thinning materials for high particle content. For lower particle content, the nanofluids are quite Newtonian. It is also observed that the relative viscosity of nanofluids at high shear rate does not vary with temperature. Moreover, the evolution of relative viscosity at high shear rate is well predicted by the Maron-Pierce model considering the effect of nanoparticles agglomerates. (C) 2013 Elsevier Masson SAS. All rights reserved.

引用

页码：111 / 117

页数：7