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Self-diffusion in Nanofluids of Nonelongated Particles in the Dilute Limit by P. Fariñas Alvariño; J. M. Sáiz Jabardo; L. Cabezas-Gómez is a Engineering article available to read on EtoBox.

What is Self-diffusion in Nanofluids of Nonelongated Particles in the Dilute Limit about?

## Abstract The dynamic features of a dilute suspension of nanoparticles (nanofluid) are fully modified depending on the dominant particles slip mechanism acting in the suspension. Self-diffusion effects in highly sheared diluted suspensions (entrance conditions and microapplications) can lead to a particles distribution fully different from the bulk one. The reported investigation proposes a model to determine the self-diffusion of three-planes symmetric nonelongated particles inmersed in a sheared Stokes flow. The model is based on the real displacements between any pair of particles and an statistical approach to determine contact kinematic irreversibilities. According to the proposed model, the source of hydrodynamic irreversibility is closely related to the particles shape. This is clearly demonstrated through the application of the model to cubic particles. The main conclusion is that the particles shape plays a significant role in the dynamic behavior of the suspension and, as a result, in the self-diffusion coefficient. The reported results arising from the cubic particles trajectories in a Stokes flow are reasonably close to the ones reported by Brady and Morris (J Fluid M

Who reads Self-diffusion in Nanofluids of Nonelongated Particles in the Dilute Limit?

Author

P. Fariñas Alvariño; J. M. Sáiz Jabardo; L. Cabezas-Gómez

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Engineering (Physical Sciences)