C. Reyl et al., SCALING PROPERTIES OF MAGNETIC DYNAMO WAVE-NUMBER POWER SPECTRA GENERATED BY LAGRANGIAN CHAOTIC FLOWS, Physics of plasmas, 5(1), 1998, pp. 151-155
Wavenumber power spectra of the magnetic field in kinematic dynamos of
Lagrangian chaotic flows are investigated. Numerical integration of t
he kinematic dynamo equations with magnetic Reynolds number R-m up to
10(5) shows that the wavenumber power spectrum of the magnetic field g
enerated by smooth, Lagrangian chaotic flows obeys a power-law. This p
roperty is theoretically predicted by a wavepacket model, whereby magn
etic field wavepackets are evolved according to ordinary differential
equations. (C) 1998 American Institute of Physics.