## Convection Videos

### Reversals in 2D convection

#### Aspect ratio 1 box

Video-1: Reversal for Γ=1, Pr=1, Ra=2×10^{7}.

#### Aspect ratio 2 box

Video-2: Reversal for Γ=2, Pr=1, Ra=10^{7}.

### Zero-P convection

**Following videos are obtained from the 27-mode model of zero-P Rayleigh-Bénard convection (RBC).**

Video-3: Oscillating asymmetric square (OASQ) pattern obtained from the 27-mode model at r=1.065 in zero-P RBC. Top view at z=0.5 plane of the convection box is shown here.

Video-4: Relaxation oscillations with an intermediate square regime (SQOR) pattern observed in the 27-mode model at r=1.012 in zero-P RBC.

Video-5: Pattern corresponding to chaotic attractor Ch4 in 27-mode model at r=1.0342, P=0.

Video-6: Pattern corresponding to chaotic attractor Ch6 in the 27-mode model at r=1.05. The lower panel shows the corresponding time series of the modes W_{101} (blue curve turning into red) and W_{111} (green curve turning into black) in Ch6. The system shows chaotic bursts.

Video-7: Oscillating wavy roll at r=1.15 for zero-P RBC.

### Dynamo

Volume Render-1: Movie showing the temporal evolution of magnetic energy density of a simulation of Taylor-Green dynamo in a periodic box of size 2π. The periodic behavior in time can be clearly observed in the video. For this run P_{m}=1, K_{0}=2, and Forcing amplitude of Taylor-Green forcing (F_{0}) = 4.77. The simulation was performed on a 643 grid.

Volume Render-2: Movie showing the temporal evolution of magnetic energy density of a simulation of Taylor-Green dynamo in a periodic box of size 2π. The chaotic behavior in time can be clearly observed in the video. For this run P_{m}=1, K_{0}=2, and F_{0} = 4.8. The simulation was performed on a 643 grid.