Nanoparticle Friction Force and Effective Viscosity of Nanosuspensions

Abstract:

Article Preview

The transport properties of nanofluids are investigated by the molecular dynamics method. It is shown that the force acting on a nanoparticle is nonstationary, in contrast to the Stokes force. In the initial stage of relaxation, the friction force is greater than the Stokes value. Subsequently, this force decreases and reaches an asymptotic value. This value is comparable to the Stokes force only for a massive particle. A correlation for determining the friction coefficient is constructed. It is established that the effective viscosity coefficient of nanofluids depends not only on the volume concentration of nanoparticles but also on the nanoparticle mass and radius.

Info:

Periodical:

Defect and Diffusion Forum (Volumes 273-276)

Edited by:

Andreas Öchsner and Graeme E. Murch

Pages:

566-571

DOI:

10.4028/www.scientific.net/DDF.273-276.566

Citation:

V. Rudyak et al., "Nanoparticle Friction Force and Effective Viscosity of Nanosuspensions ", Defect and Diffusion Forum, Vols. 273-276, pp. 566-571, 2008

Online since:

February 2008

Export:

Price:

$35.00

In order to see related information, you need to Login.