Videos from simulations of flowing foams generated using Brakke's Surface Evolver and the Viscous Froth Model, and from experiments performed by Sian Jones on flow through a constriction.

These help us to do research on foams. All images and videos are copyright. Please contact me for further details.

Quasistatic coarsening, that is, gas diffusion between bubbles due to pressure differences, of a 2D foam confined within a semicircular container, with two solid circular inclusions:
Coarsening, that is, gas diffusion between bubbles due to pressure differences, of a periodic 2D foam with viscous drag on the films:
Quasi-static Boundary-driven cyclic shear flow of a polydisperse foam:
Simple shear of a periodic monodisperse 2D foam with viscous drag:
Quasi-static pressure-driven flow of a polydisperse 2D foam in a channel with partial slip at the walls:
Quasi-static simple shear of a periodic 3D foam:
Quasi-static flow of a bidisperse 2D foam in an annular Couette cell:
Quasi-static flow of a polydisperse 2D foam around a smoothed, right-angled corner:
Quasi-static flow of monodisperse 2D foam through a 4:1:4 contraction:

You can find experimental videos for a constriction flow of a foam in a Hele-Shaw cell, generated by Sian Jones, here: slow and fast
Quasi-static flow of a monodisperse 2D foam through a cross-slot:
Quasi-static simple shear of a polydisperse 2D foam with liquid fraction of 3%:
Quasi-static Stokes flow of a sphere through a 3D cylinder of monodisperse foam:
Quasi-static Stokes flow of a foams past several circular discs in a channel:
Quasi-static flow of a 2D foam past a disc in a channel, including lamella generation by bubble breakup. Initially monodisperse foam and central disc:
Quasi-static flow of a 2D foam past a disc in a channel, including lamella generation by bubble breakup. Initially polydisperse foam and off-centre disc:
Quasi-static Stokes flow of a monodisperse 2D foam past a circular disc in a channel:
Quasi-static Stokes flow of a monodisperse 2D foam past an off-centre circular disc in a channel:

Quasi-static flow of a monodisperse 2D foam past a tilted rectangle in a channel:
Quasi-static flow of a monodisperse 2D foam past a sausage in a channel:

Quasi-static uniaxial shear of a bidisperse 2D foam in a rectangular box:
Extension of a monodisperse 2D foam between parallel walls, with defects coloured:
Collapse of a periodic 2D foam, with films destroyed at random:
Cell growth, at constant rate, and division, initiated when cells grow above a threshold, in a tube (or crypt):
Viscous flow of bubbles in a channel with a 180 degree bend at high velocity:

The datafile describing the geometry is available here.
Viscous flow of bubbles in a channel with a 180 degree bend at low velocity:


The information provided on this and other pages by me, Simon Cox, is under my own personal responsibility and not that of Aberystwyth University. Similarly, any opinions expressed are my own and are in no way to be taken as those of AU.