Jump to main content
Jump to site search

Issue 18, 2013
Previous Article Next Article

Thermophoretically induced flow field around a colloidal particle

Author affiliations

Abstract

A colloidal particle suspended in a fluid solvent with a non-homogeneous temperature undergoes a thermophoretic force. This force may translate into a directed drift of the particle and a source-dipole-like flow field around it. Alternatively, if the colloid is fixed in space, the accompanying flow is long-ranged. In this work, we provide a first simulation study of the thermophoretic force-induced flow fields by a particle-based mesoscopic method. The simulation results are quantitatively consistent with theoretical predictions obtained by solving hydrodynamic equations. Based on these results, we propose a single-particle microfluidic pump without movable parts, in which the flow direction can be reversed. Furthermore, we quantify the long-range hydrodynamic attraction between two suspended particles near the boundary wall induced by the thermophoretic flow field.

Graphical abstract: Thermophoretically induced flow field around a colloidal particle

Back to tab navigation

Publication details

The article was received on 27 Dec 2012, accepted on 21 Feb 2013 and first published on 25 Mar 2013


Article type: Paper
DOI: 10.1039/C3SM27949A
Citation: Soft Matter, 2013,9, 4661-4671
  • Open access: Creative Commons BY license
  •   Request permissions

    Thermophoretically induced flow field around a colloidal particle

    M. Yang and M. Ripoll, Soft Matter, 2013, 9, 4661
    DOI: 10.1039/C3SM27949A

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements