On the Importance of Particle Migration in a Layer of Nanofluid Subjected to a Specified Temperature Difference

The aim of the present paper is to study the heat conduction in a nanofluid layer containing low volume concentration of AL2O3 nanoparticles with a regard to the migration of nanoparticles due to Brownian diffusion and thermophoresis. To do this, both known heat flux and known temperature boundary conditions are investigated. All of the properties are assumed to be temperature as well as particle concentration dependent. The energy equation along with the particle concentration equation is nondimensionalized and solved numerically. The effects of temperature difference and heat flux magnitude on non-uniform distribution of nanoparticles, the local conductivity and temperature distribution of nanofluid are shown

کلیدواژه ها:

Nanofluid ، Particle Migration ، BrownianDiffusion ، Thermophoresis