One-dimensional modelling of the thinning of particulate suspensions near pinch-off Articles uri icon

publication date

  • November 2018

start page

  • 202

end page

  • 210

volume

  • 108

international standard serial number (ISSN)

  • 0301-9322

electronic international standard serial number (EISSN)

  • 1879-3533

abstract

  • This paper deals with the thinning dynamics of a liquid bridge of dilute particulate suspensions in a Newtonian matrix. We describe the final stage before break-up of a colloidal suspension, which occurs in a liquid thread between two confining beads. The model, based on the one-dimensional mass and momentum conservation equations, shows quantitative agreement with the experimentally observed deceleration and final pinching behaviour of the medium between individually monitored particles in the suspension (Mathues et al., 2015) and thus supports the hypothesis that an accelerated thinning of the Newtonian matrix is caused by an active stretching via independently moving particles. (C) 2018 Elsevier Ltd. All rights reserved.

keywords

  • Colloidal suspension; Liquid bridge; Capillary break-up; Stretching; 1D modelling