Conveners
W2-9 Fluids and Granular Matter (DCMMP) | Fluides et matière granulaire (DPMCM)
- Colin Denniston (University of Western Ontario)
Lattice-Boltzmann (LB) simulations have been used extensively over the past several decades in the study of hydrodynamics. With computational power increasing, LB methods have been coupled with various molecular dynamics (MD) methods to better simulate complex fluids, phase transitions, and their behaviour at interfaces. Using a modified LB package from the Large-Scale Atomic/Molecular...
There is interest in reproducing macroscopic continuous matter experiments
with granular systems to predict their properties and explore the analogues
between granular and continuum systems. The classic pendant drop
experiment can be used to measure interfacial tension in liquids. Here we
prepare a granular ‘liquid’, consisting of adhesive, frictionless,
monodisperse oil droplets in an...
We produce a chain of microscopic monodisperse droplets in an aqueous bath, which rises due to the buoyancy of the droplets. There is an attractive interaction between the droplets and if the droplets are produced quickly, such that one droplet is produced and contacts the next, they adhere. Producing many droplets in this fashion allows us to create a chain of sticky droplets. Tuning the rate...
The structure of an accumulation of granular material, such as a pile of sand, can be characterized by the angle of repose, which is dependent on the balance between gravity and inter-grain friction. In contrast, for the case of a continuum material like a simple liquid, the height of a puddle is dictated by the capillary length which balances gravity and surface tension. Here we present an...
Active matter is a term used to describe matter that is composed of a large number of self-propelled active ‘particles’ that individually convert stored or ambient energy into systematic motion. Examples include a flock of birds, a school of fish, or at smaller scales a suspension of bacteria or even the collective motion within a human cell. When viewed collectively, active matter is an...
