A comparative study on particle-fluid interactions in micro and nanofluids of aluminium oxide

被引：33

作者：

Hemalatha, J. ^{[1
]}

Prabhakaran, T. ^{[1
]}

Nalini, R. Pratibha ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Phys, Adv Mat Lab, Tiruchirappalli, Tamil Nadu, India

来源：

MICROFLUIDICS AND NANOFLUIDICS | 2011年 / 10卷 / 02期

关键词：

Nanofluid; Microfluid; Acoustic properties; Aluminium oxide (Al2O3); THERMAL-CONDUCTIVITY ENHANCEMENT; ULTRASONIC VELOCITY; TEMPERATURE; DIFFRACTION; DENSITY;

D O I：

10.1007/s10404-010-0666-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Stable dispersions of micro and nanosized Al2O3 particles in ethylene glycol are prepared with the aid of sonication. The temperature dependant acoustic properties such as ultrasonic velocity, adiabatic compressibility, attenuation and acoustic impedance are studied and reported in this paper. In microfluids the particle-fluid interaction is observed to decrease with increase of concentration of particles whereas in nanofluids it is observed to increase up to the critical concentration (0.6 Wt%) and above which the particle-particle interaction dominates due to agglomeration of particles. A range of concentration with significant particle-fluid interaction is identified for effective nanofluid applications.

引用

页码：263 / 270

页数：8

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