Turbulent Plasma in the Lab

Turbulent Spectra in the Solar Wind Plasma

Observations of interstellar scintillations at radio wavelengths reveal a Kolmogorovlike scaling of the electron density spectrum with a spectral slope of −5/3 over six decades in wavenumber space. A similar turbulent density spectrum in the solar wind plasma has been reported. The energy transfer process in the magnetized solar wind plasma over such extended length-scales remains an unresolved...

Reading English in the Computer Lab

The present study compares the performance of two TEFL reading classes: one taking place in a regular classroom and the other held in a computer lab, with the learners practicing reading online. The results of an independent samples t-test showed that the difference between the learners’ scores on their reading comprehension post-tests and pretests did not differ statistically significantly fro...

Turbulent dynamo in a collisionless plasma.

Magnetic fields pervade the entire universe and affect the formation and evolution of astrophysical systems from cosmological to planetary scales. The generation and dynamical amplification of extragalactic magnetic fields through cosmic times (up to microgauss levels reported in nearby galaxy clusters, near equipartition with kinetic energy of plasma motions, and on scales of at least tens of ...

Plasma Actuators: From Lab to Flight

Spectral scaling in the turbulent Earth’s plasma sheet revisited

Bursty bulk flow associated magnetic fluctuations exhibit at least three spectral scaling ranges in the Earth’s plasma sheet. Two of the three scaling ranges can be associated with multi-scale magnetohydrodynamic turbulence between the spatial scales from ∼100 km to several RE (RE is the Earth’s radius). These scales include the inertial range and below ∼0.5RE a steepened scaling range, theoret...