Lagrangian turbulence (QT)
Lagrangian tracers in a turbulent flow. Because of incompressibility the distribution of tracers is statistical homogeneous in the flow. [Movie generated using PovRay software on the basis of direct numerical simulations at resolution 1024^3]

G-spot turbulence (QT)
A two-dimensional fluid forced at small scales develop an inverse cascade in which injected energy flows to large scales. At long time energy reaches the scale of the box and generate the condensate, a dipole clearly observable in the vorticity field represented by the movie. [Simulations done on Turbofarm cluster in Torino. 86 MB, mpeg4]

Walking on water (QT)
A tub filled with cornstarch solution (shear thickening fluid) allows to walk on water if running sufficiently fast.
[Demonstration done at the Physics Dept., University of Torino, September 2007].

Laminar demixer (QT) (September, 2009)
This movie shows a Taylor-Couette flow at very small Reynolds number (using glycerol as fluid). Because non-linear terms are negligible, the flow is simply proportional to mechanical forcing. Inverting the forcing the flow is reversed and the colorant demixed.

Turbulent convection (QT) (April, 2009)
Simulation of Rayleigh-Taylor turbulent convection. Red (blue) represents warm (cold) water in a gravitational field. The initial, unstable, configuration is perturbed by a small noise in the flat interface.
[Movie generated using VisIt software on the basis of direct numerical simulations at resolution 512x512x1024]
Vertical section movie (QT)

Dispersion in turbulence (QT)
Clouds composed of thousands of particles are transported by a two-dimensional turbulent flow in the inverse cascade (Kolmogorov) regime. Particles are initially placed in the origin. Observe the accelerated growth of cloud size according to Richardson dispersion.

Soap bubble turbulence (QT)
The soap film is a half-bubble of about 7 cm diameter on the top of a plastic glass. The system is illuminated by light diffusing from the bottom of the glass. The camera is placed on one side of the bubble and what you see is the internal surface of side opposite to the camera. Turbulent motion is induced both from the heating of the light and from the motion of the air around the bubble.

Turbulent roller coaster (QT)
The camera is placed on one Lagrangian tracer looking in the direction of velocity while the particle enter in a vortex. Observe the absence of collisions with other particles as a consequence of incompressibility.
[Movie generated using PovRay software on the basis of direct numerical simulations at resolution 1024^3]

Turbulent Kandinsky (QT)
This movie shows the evolutions of tetrahedra in numerical simulations of turbulence. Groups of 4 particles, defining a tetrahedron, starting from very small distance, are transported in the turbulent flow. Incompressibility and turbulence separate particles and form, starting from a regular shape, very irregular, elongated tetrahedra.
[Movie generated using PovRay software on the basis of direct numerical simulations at resolution 1024^3]