Helicity is unnecessary for alpha effect dynamos, but it helps

DOI10.1080/03091928808208861zbMath0662.76138OpenAlexW1974170089MaRDI QIDQ3813545

Annick Pouquet, Andrew D. Gilbert, Uriel Frisch

Publication date: 1988

Published in: Geophysical & Astrophysical Fluid Dynamics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/03091928808208861

zbMATH Keywords

velocity fieldhelicitytwo-scale analysisdynamo instabilityalpha effect dynamoslack of parity-invariancenon-helical velocity field

Mathematics Subject Classification ID

Magnetohydrodynamics and electrohydrodynamics (76W05) Stability and instability of magnetohydrodynamic and electrohydrodynamic flows (76E25)

Related Items (4)

Helicity generation and subcritical behaviour in rapidly rotating dynamos ⋮ Dimensionality, secondary flows and helicity in low-Rm MHD vortices ⋮ Buoyancy-driven perturbations in a rapidly rotating, electrically conducting fluid: part II – dynamo action ⋮ Inverse cascades and time-dependent dynamos in MHD flows

Cites Work

• Diffusion of weak magnetic fields by isotropic turbulence

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