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):
Quicktime
(101MB),
DivX
(7MB)
Dynamo benchmark:
Quicktime movies:
Model B
Model C