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Updated: Aug 23, 2026

The Diffusion of Passive Tracers in Laminar Shear Flow
Published on: May 1, 2018
A lattice Boltzmann model of flow blunting
M M Dupin1, I Halliday, C M Care
1Materials Research Institute, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK.
Abstract:
We review our recent multi-component lattice Boltzmann equation method for the simulation of a large number of mutually immiscible liquid species and then apply it to the simulation of dense volume fraction suspensions of deformable particles in internal geometry. In particular, we illustrate the scope of our method by applying it to the simulation of pipe flows containing a high volume fraction of monodisperse suspended, deformable particles. The particles are modelled as immiscible, relatively viscous liquid drops. We modify the 'solidity' of the particles by modifying their viscosity and surface tension and demonstrate the effect of the solidity upon the blunting of the velocity profile.
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