Odd viscous liquids are endowed with an intrinsic mechanism that tends to restore a
displaced particle back to its original position. Since the odd viscous stress does not …

We present the first detailed thermal and velocity field characterization of convection in a
rotating cylindrical tank of liquid gallium, which has thermophysical properties similar to …

The shear-current effect (SCE) of mean-field dynamo theory refers to the combination of a
shear flow and a turbulent coefficient β 21 with a favourable negative sign for exponential …

Kinetic helicity and its spatial distribution are thought to be important for the maintenance of
a dipolar magnetic field in the geodynamo through the α-effect. Outside the inner core …

The dipole–multipole transition in rapidly rotating dynamos is investigated through the
analysis of forced magnetohydrodynamic waves in an unstably stratified fluid. The focus of …

The liquid iron core of the Earth undergoes vigorous convection driven by thermal and
compositional buoyancy. The dynamics of convective fluid motions and heat transfer in such …

Inertial waves are oscillations in a rotating fluid, such as the Earth's outer core, which result
from the restoring action of the Coriolis force. In an earlier work, it was argued by Davidson …

Helicity, the inner product of velocity and vorticity, is considered an important ingredient for
the maintenance of a dipolar magnetic field in the geodynamo. Outside the tangent cylinder …

In recent numerical simulations of the geodynamo the dynamo action is driven, primarily, by
the effects of helicity, with differential rotation playing only a secondary role. These dynamos …

Are planetary dynamos driven by helical waves? Page 1 J. Plasma Phys. (2018), vol. 84,
735840304 c Cambridge University Press 2018 doi:10.1017/S0022377818000466 1 REVIEW …