Now showing items 1-10 of 239
On thermal instabilities in a viscoelastic fluid
(International Journal of Non-Linear Mechanics, 2006-01)
Ion cyclotron instability due to the thermal anisotropy of drifting ion species
(Blackwell Publishing Ltd, 2003)
In a recent study of ion cyclotron waves generated by the thermal anisotropy of oxygen ions, it was shown that the heavy ion drift velocity and a large thermal anisotropy of the heavy ions can destabilize proton-cyclotron ...
Proton-cyclotron instability induced by the thermal anisotropy of minor ions
(Blackwell Publishing Ltd, 2002)
We study ion cyclotron instabilities due to the thermal anisotropy of minor heavy ions. Very large thermal anisotropics have been observed in O +5 ions in coronal holes [Cranmer, 2001], and as is well known, the thermal ...
Linear kinetic waves in plasmas described by Kappa Distributions
In this chapter we present an overview of the excitation, propagation, and absorption of linear plasma waves in collisionless, spatially uniform, multicomponent, magnetized non-Maxwellian plasma characterized by a ...
Natural convection in thermal plumes emerging from a single heat source
We report numerical simulations of confined natural convection from a single heat source, leading to the evolution of thermal plumes in two and three dimensions. Thermal plumes are driven through a single heat source mounted ...
Particle-in-cell Simulations of Firehose Instability Driven by Bi-Kappa Electrons
(Institute of Physics Publishing, 2019)
We report the first results from particle-in-cell simulations of the fast-growing aperiodic electron firehose instability driven by the anisotropic bi-Kappa distributed electrons. Such electrons characterize space plasmas, ...
Pic simulations of the effect of velocity space instabilities on electron viscosity and thermal conduction
(IOP Publishing, 2016)
In low-collisionality plasmas, velocity-space instabilities are a key mechanism providing an effective collisionality for the plasma. We use particle-in-cell (PIC) simulations to study the interplay between electron-and ...
PIC Simulations of Velocity-space Instabilities in a Decreasing Magnetic Field: Viscosity and Thermal Conduction
(Institute of Physics Publishing, 2018)
We use particle-in-cell (PIC) simulations of a collisionless, electron–ion plasma with a decreasing background magnetic field, B, to study the effect of velocity-space instabilities on the viscous heating and thermal ...
PIC simulations of velocity space instabilities in a decreasing magnetic field: viscosity and thermal conduction
(IOP Publishing Ltd, 2018)
We use particle-in-cell (PIC) simulations of a collisionless, electron-ion plasma with a decreasing background magnetic field, B, to study the effect of velocity-space instabilities on the viscous heating and thermal ...