TLBfind: a Thermal Lattice Boltzmann code for concentrated emulsions with FINite-size Droplets

Published: 10 January 2022| Version 1 | DOI: 10.17632/hbk45696nf.1


In this paper, we present TLBfind, a GPU code for simulating the hydrodynamics of droplets along with a dynamic temperature field. TLBfind hinges on a two-dimensional multi-component lattice Boltzmann (LB) model simulating a concentrated emulsion with finite-size droplets evolving in a thermal convective state, just above the transition from conduction to convection. The droplet concentration of the emulsion system is tunable and at the core of the code lies the possibility to measure a large number of physical observables characterising the flow and droplets. Furthermore, TLBfind includes a parallel implementation on GPU of the Delaunay triangulation useful for the detection of droplets' plastic rearrangements, and several types of boundary conditions, supporting simulations of channels with structured rough walls.



Condensed Matter Physics, Computational Physics, Hydrodynamics, Lattice-Boltzmann Method