Movies

Local Cross-roll Instability and Nucleation of Targets

Local Cross-roll Instability and Nucleation of Targets, movie

The movie illustrates the local cross-roll instability, which is caused by a near-by moving dislocation. As a result of the instability targets were nucleated. The Rayleigh-Benard convection experiment was done in SF6 near its gas-liquid critical point at Pr=14. Reference: M. Assenheimer and V. Steinberg, Phys. Rev.Lett. 70, 3888 (1993)

Spiral Core Instability (numerical simulations)

Spiral Core Instability (numerical simulations), movie

This animation presents the result of numerical simulations of Ginzburg-Landau equation which illustrate the dynamics of spiral core instability towards nucleation of hexagons. Reference: I.Aranson, M.Assenheimer, L. Tsimring, and V. Steinberg, Phys. Rev. E 55, R4877 (1997).

Spiral Core Instability

Spiral Core Instability, movie

The movie shows the spiral core instability towards the creation of hexagons observed in the experiment on Rayleigh-Benard convection of a gas SF6 near its gas-liquid critical point at Pr=4.5. Cell thickness 130 micron. Reference: I.Aranson, M.Assenheimer, L. Tsimring, and V. Steinberg, Phys. Rev. E 55, R4877 (1997).

Spiral Dynamics in Rayleigh-Benard Convection

Spiral Dynamics in Rayleigh-Benard Convection, movie

The movie demonstrates dynamics of a spiral together with dynamics of a dislocation moving azymuthally. Each movie frame presents a small part of a full image, which shows pattern in Rayleigh-Benard convection of a gas SF6 near its gas-liquid critical point at Pr= 4. Cell thickness 130 micron. Reference: M. Assenheimer and V. Steinberg. Europhysics News, 27, 125 (1996).

Dynamics of Hexagons Nucleation

Dynamics of Hexagons Nucleation, movie

The movie demonstrates nucleatuon and dynamics of hexagons inside of rotating spirals, targets, and core of defects. Movie frame presents a part of full image, which shows a pattern in Rayleigh-Benard convection of a gas SF6 near its gas-liquid critical point at Pr= 4. Cell thickness 130 micron. Reference: M. Assenheimer and V. Steinberg. Europhysics News, 27, 125 (1996).

Dynamics of Hexagons in Unstable Target Core

Dynamics of Hexagons in Unstable Target Core, movie

The movie demonstrates dynamics of hexagons inside of rotating spirals. Movie frame presents a part of full image, which shows a pattern in Rayleigh-Benard convection of a gas SF6 near its gas-liquid critical point at Pr= 4. Cell thickness 130 micron. Reference: I. Aranson, M. Assenheimer, L. Tsimring and V. Steinberg. Phys. Rev. E 55, R 4877 (1997).