Physics – Space Physics
Scientific paper
2009-02-25
Physics
Space Physics
Paper contains 3 figures. The paper is accepted for publication in Monthly Notices of the Royal Astronomical Society Main Jour
Scientific paper
10.1111/j.1365-2966.2009.14702.x
Nonlinear three dimensional, time dependent, fluid simulations of whistler wave turbulence are performed to investigate role of whistler waves in solar wind plasma turbulence in which characteristic turbulent fluctuations are characterized typically by the frequency and length scales that are respectively bigger than ion gyro frequency and smaller than ion gyro radius. The electron inertial length is an intrinsic length scale in whistler wave turbulence that distinguishably divides the high frequency solar wind turbulent spectra into scales smaller and bigger than the electron inertial length. Our simulations find that the dispersive whistler modes evolve entirely differently in the two regimes. While the dispersive whistler wave effects are stronger in the large scale regime, they do not influence the spectral cascades which are describable by a Kolmogorov-like $k^{-7/3}$ spectrum. By contrast, the small scale turbulent fluctuations exhibit a Navier-Stokes like evolution where characteristic turbulent eddies exhibit a typical $k^{-5/3}$ hydrodynamic turbulent spectrum. By virtue of equipartition between the wave velocity and magnetic fields, we quantify the role of whistler waves in the solar wind plasma fluctuations.
No associations
LandOfFree
Whistler Wave Cascade in Solar Wind Plasma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Whistler Wave Cascade in Solar Wind Plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Whistler Wave Cascade in Solar Wind Plasma will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-158230