Stable layers of vapour at the surface of a heated sphere can greatly reduce the drag coefficient and micro-patterned superhydrophobic surfaces can even prevent vapour explosions.

Tomographic PIV measurements can provide 3-D time-resolved velocity fields, to investigate the dynamics of coherent vortical structures in high-Reynolds number turbulence.

Micro-capillaries and micro-channels are used to make and manipulate minute droplets and bubbles with numerous potential applications chemistry and biology.

Rapid flows of granular media can behave like a fluid. We investigate the effects of the grain size and compactedness on these dynamics.