Non-axisymmetric magnetic fields in a convective dynamo simulation:

See also the associated paper.

Longitudinal magnetic field Bφ near the surface (r = 0.98R), Rm ≈ 28 (128 × 256 × 512 grid points): (AVI, 30MB).




Stratified convection with imposed horizontal magnetic field:


Vertical velocity Uz near the surface (z = 0.98d), Re ≈ 100 (1024 × 512 × 256 grid points): (AVI, 11 MB).


Magnetic field component By near the surface (z = 0.98d), Rm ≈ 5 (1024 × 512 × 256 grid points): (AVI, 11 MB).



Magnetic field component By near the surface (z = 0.98d), Rm ≈ 5 (1024 × 512 × 256 grid points): (AVI, 15 MB).



Magnetic field component By averaged over the y coordinate, Rm ≈ 5 (1024 × 512 × 256 grid points): (AVI, 2 MB).



Magnetic field component By averaged over the y coordinate, Rm ≈ 20 (1024 × 512 × 256 grid points): (AVI, 2 MB).




Cyclic magnetic activity due to turbulent convection in spherical wedge geometry:

See also the associated paper.

Longitudinal magnetic field Bφ near the surface (r = 0.98R): (AVI, 68MB).




Effects of stratification in spherical shell convection:

See also the associated paper.

Vertical velocity Ur near the surface in 20 simulations




Large-scale cyclones in rotating turbulent convection:

See also the associated paper.

Vertical velocity Uz in the prephery of the domain: (AVI, 15MB), Re ≈ 101, Co ≈ 7.5 (5122 × 256 grid points).




Reynolds stress and heat transport in spherical shell convection:

See also the associated paper.

Snapshots of Ur near the surface from two runs: ±75 degrees latitude, 90 degrees longitude (here duplicated four-fold).

Intermediate rotation with anti-solar differential rotation, Ur: (AVI, 8MB), Re ≈ 57, Co ≈ 1.3 (128 × 512 × 256 grid points).



Rapid rotation with solar like differential rotation, Ur: (AVI, 5MB), Re ≈ 44, Co ≈ 6.9 (128 × 512 × 256 grid points).




Convection with imposed field:

Imposed vertical field, Bz: (AVI, 8MB), Re ≈ 45, Pm = 1 (2562 × 192 grid points).

Imposed horizontal field, Bx: (AVI, 6MB), Re ≈ 45, Pm = 1 (2562 × 192 grid points).



Magnetorotational instability driven dynamos at low magnetic Prandtl numbers:

See also the associated paper.

Velocity component Ux: (AVI, 25MB), Re ≈ 8970, Pm = 0.1 (5123 grid points).



Angular momentum transport in convectively unstable shear flows:

See also the associated paper.

Vertical velocity: (Quicktime, 30MB), Re ≈ 648 (10243 grid points)



Convective dynamos in spherical wedge geometry:

See also the associated paper.

Vertical velocity Ur near the surface: (Quicktime, 40MB), (DivX, 3MB), Rm ≈ 45.

Azimuthal magnetic field component Bφ near the surface: (Quicktime, 28MB), (DivX, 3MB), Rm ≈ 45.

Azimuthally averaged magnetic field component Bφ: (Quicktime, 20MB), Rm ≈ 30.


Large-scale dynamos in rigidly rotating turbulent convection:

See also the associated paper.

Magnetic field component Bx: Rm ≈ 90 (DivX 18MB) (5122 × 256 grid points).

Vertical velocity Uz: Re ≈ 45 (DivX 16MB) (5122 × 256 grid points).


Large-scale dynamos in turbulent convection with shear:

See also the associated paper.

Large-scale magnetic fields in turbulent convection with shear: Rm ≈ 74 (DivX 26MB) (2563 grid points), Rm ≈ 121 (DivX 16MB) (5123 grid points).

Vertical magnetic field at the top of the convectively unstable layer in shearing convection DivX (35MB)

Vorticity dynamo:

See also the associated paper.

Streamwise velocity component from a simulation of nonhelically forced turbulence with shear (5123 grid points): DivX (7MB)

Dynamo benchmark:

Quicktime movies: Model B Model C