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相关论文: Driven waves in a two-fluid plasma

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The collisional drift wave instability is reexamined taking into account the ion response in the direction parallel to the magnetic field lines, which appears due to friction with electrons and which can not be omitted in view of the…

等离子体物理 · 物理学 2009-11-13 J. Vranjes , S. Poedts

This is the first in a series of papers on the effects of dust on the formation, propagation, and structure of nonlinear MHD waves and MHD shocks in weakly-ionized plasmas. We model the plasma as a system of 9 interacting fluids, consisting…

天体物理学 · 物理学 2009-11-07 Glenn E. Ciolek , Wayne G. Roberge

We study the damping from neutral-ion collisions of both incompressible and compressible magnetohydrodynamic (MHD) turbulence in partially ionized medium. We start from the linear analysis of MHD waves applying both single-fluid and…

高能天体物理现象 · 物理学 2016-08-17 Siyao Xu , Huirong Yan , A. Lazarian

The presence of neutral species in a plasma has been shown to greatly affect the properties of magnetohydrodynamic waves. For instance, the interaction between ions and neutrals through momentum transfer collisions causes the damping of…

太阳与恒星天体物理 · 物理学 2017-03-16 David Martínez-Gómez , Roberto Soler , Jaume Terradas

We consider the propagation of hydromagnetic waves generated by a compact turbulent source in low ionized plasmas, applying the Lighthill theory. We assume the plasma to be isothermal, and adopt a uniform, stationary medium thread by…

天体物理学 · 物理学 2015-06-24 Hideko Nomura , Hideyuki Kamaya , Shin Mineshige

Charged particles interacting with electromagnetic waves have a portion of their energy tied up in wave-driven oscillations. When these waves are localized to the exhaust of linear magnetic confinement systems this ponderomotive effect can…

等离子体物理 · 物理学 2024-08-19 T. Rubin , I. E. Ochs , N. J. Fisch

The effects of charge exchange on waves propagating in weakly ionized plasmas are discussed. It is shown that for low-frequency processes, ions and neutrals should be treated as a single fluid with some effective charge on all of them. We…

等离子体物理 · 物理学 2015-12-09 J. Vranjes , M. Kono , M. Luna

We investigate the charge-dependent flow induced by magnetic and electric fields in heavy ion collisions. We simulate the evolution of the expanding cooling droplet of strongly coupled plasma hydrodynamically, using the iEBE-VISHNU…

高能物理 - 唯象学 · 物理学 2018-11-21 Umut Gürsoy , Dmitri Kharzeev , Eric Marcus , Krishna Rajagopal , Chun Shen

In the study of plasma, particularly in applications involving strong laser-plasma interactions, the propagation of a strong electromagnetic wave induces relativistic velocities in the electron flow. Given such conditions, the wave…

等离子体物理 · 物理学 2026-02-13 Zohreh Hashempour , Mehdi Nasri Nasrabadi , Nora Nassiri-Mofakham , Hamidreza Daniali

A ray-theoretic phase space description of linear waves in a two-fluid (charges and neutrals) magnetized plasma is used to calculate analytic decay rates and mode transmission and conversion coefficients between fast and slow waves in two…

太阳与恒星天体物理 · 物理学 2023-04-12 Paul S Cally , M. M. Gomez-Miguez

Following recent work, we discuss waves in a warm ideal two-fluid plasma consisting of electrons and ions starting from a completely general, ideal two-fluid dispersion relation. The plasma is characterised by five variables: the electron…

等离子体物理 · 物理学 2020-12-18 Jordi De Jonghe , Rony Keppens

Plasma processes close to SNR shocks result in the amplification of magnetic fields and in the acceleration of electrons, injecting them into the diffusive acceleration mechanism. The acceleration of electrons and the B field amplification…

高能天体物理现象 · 物理学 2015-06-09 M E Dieckmann , G Murphy , A Meli , L O C Drury

The Alfven wave is analyzed in case of one quasineutral plasma propagating with some constant speed $v_0$ through another static quasineutral plasma. A dispersion equation is derived describing the Alfven wave coupled with the flow driven…

等离子体物理 · 物理学 2015-10-20 J. Vranjes

Shocks waves are a ubiquitous feature of many astrophysical plasma systems, and an important process for energy dissipation and transfer. The physics of these shock waves are frequently treated/modeled as a collisional, fluid MHD…

等离子体物理 · 物理学 2021-11-17 Colby C. Haggerty , Antoine Bret , Damiano Caprioli

A supersonic flow of magnetized plasma is produced by the application of a 1 MA-peak, 500 ns current pulse to a cylindrical arrangement of parallel wires, known as an inverse wire array. The plasma flow is produced by the JxB acceleration…

A low-pressure magnetized plasma is studied to find the dependency of sheath properties on ion-neutral collisions in presence of an inhomogeneous magnetic field. A self-consistent one-dimensional two-fluid hydrodynamic model is considered,…

等离子体物理 · 物理学 2021-05-04 K. Deka , S. Adhikari , R. Moulick , S. S. Kausik , B. K. Saikia

We present a study of the Kelvin-Helmholtz instability in a weakly ionised, multifluid MHD plasma with parameters matching those of a typical molecular cloud. The instability is capable of transforming well-ordered flows into disordered…

星系天体物理 · 物理学 2015-06-03 A. C. Jones , T. P. Downes

The Kelvin-Helmholtz instability is well known to be capable of converting well-ordered flows into more disordered, even turbulent, flows. As such it could represent a path by which the energy in, for example, bowshocks from stellar jets…

星系天体物理 · 物理学 2011-11-03 Aoife C. Jones , Turlough P. Downes

A local turbulence model is developed to study energy cascades in the heliosheath and outer heliosphere (OH) based on self-consistent two-dimensional fluid simulations. The model describes a partially ionized magnetofluid OH that couples a…

空间物理 · 物理学 2015-05-14 Dastgeer Shaikh , G. P. Zank

Shock waves constitute discontinuities in matter which are relevant in studying the plasma behaviour in astrophysical scenarios and in heavy-ion collision. They can produce conical emission in relativistic collisions and are also thought to…

高能天体物理现象 · 物理学 2013-09-03 Ritam Mallick , Stefan Schramm