Nonlinear dynamo action in a precessing cylindrical container

Abstract

It is numerically demonstrated by means of a magnetohydrodynamics (MHD) code that precession can trigger the dynamo effect in a cylindrical container. This result adds credit to the hypothesis that precession can be strong enough to be one of the sources of the dynamo action in some astrophysical bodies.

5 pages, 5 figures including subfigures

References in corpus (3)

• Generation of magnetic field by dynamo action in a turbulent flow of liquid sodium
• Numerical simulations of current generation and dynamo excitation in a mechanically-forced, turbulent flow
• Bypassing Cowling's theorem in axisymmetric fluid dynamos

Cited by in corpus (22)

• Precession-driven dynamos in a full sphere and the role of large scale cyclonic vortices
• Precessing spherical shells: flows, dissipation, dynamo and the lunar core
• Experimental study of fluid flows in a precessing cylindrical annulus
• Precession-driven flows in non-axisymmetric ellipsoids
• Nonlinear large scale flow in a precessing cylinder and its ability to drive dynamo action
• Subcritical transition to turbulence of a precessing flow in a cylindrical vessel
• A hybrid finite-difference/boundary element procedure for the simulation of turbulent MHD duct flow at finite magnetic Reynolds numbers
• Triadic resonances in non-linear simulations of a fluid flow in a precessing cylinder
• Kinematic dynamo action of a precession driven flow based on the results of water experiments and hydrodynamic simulations
• Bistable flows in precessing spheroids
• Interplay between geostrophic vortices and inertial waves in precession-driven turbulence
• The effect of nutation angle on the flow inside a precessing cylinder and its dynamo action
• Remarks on the stability of the Navier-Stokes equations supplemented with stress-free boundary conditions
• Triadic instability of a non-resonant precessing fluid cylinder
• Mechanisms for magnetic Field generation in precessing cubes
• Magnetic field dynamos and magnetically triggered flow instabilities
• Laboratory experiments on dynamo action and magnetically triggered flow instabilities
• Integral equations in MHD: theory and application
• Forward and inverse problems in fundamental and applied magnetohydrodynamics
• Experimental realization of dynamo action: present status and prospects
• DRESDYN - A new facility for MHD experiments with liquid sodium
• Numerical simulations for the DRESDYN precession dynamo