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The common feature of sheared flows of an ideal fluid and plasma in magnetic field is the Kelvin-Helmholtz instability. This instability is described by identical equations in mentioned two cases. The wave equation for the eigenmodes in the…

等离子体物理 · 物理学 2012-07-31 A. Yu. Chirkov , V. I. Khvesyuk

5-dimensional special relativity can be considered as the 5-dimensional extension of Carmeli's cosmological special relativity, as well as the flat specialization of 5-d brane world theory. To this framework we add a 5-dimensional perfect…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Gianluca Gemelli

Hydrodynamics is nowadays understood as an effective field theory that describes the dynamics of the long-wavelength and slow-time fluctuations of an underlying microscopic theory. In this work we extend the relativistic hydrodynamics to…

高能物理 - 理论 · 物理学 2020-05-27 Saulo M. Diles , Luis A. H. Mamani , Alex S. Miranda , Vilson T. Zanchin

The idea to describe quantum systems within a hydrodynamic framework (quantum hydrodynamics, QHD) goes back to Madelung and Bohm. While such a description is formally exact for a single particle, more recently the concept has been applied…

等离子体物理 · 物理学 2015-06-11 D. Michta , F. Graziani , M. Bonitz

The generalized Helmholtz equations of relativistic multifluid plasmas can be integrated for axisymmetric equilibria in close analogy to the magnetic flux conservation law in ideal magnetohydrodynamics (J. D. Bekenstein and E. Oron, Phys.…

天体物理学 · 物理学 2009-10-31 Klaus Elsaesser

We derive self-consistent formalism for the description of multi-component partially ionized solar plasma, by means of the coupled equations for the charged and neutral components for an arbitrary number of chemical species, and the…

太阳与恒星天体物理 · 物理学 2015-06-22 Elena Khomenko , Manuel Collados , Antonio Diaz , Nikola Vitas

We derive a von K\'arm\'an plate theory from a three-dimensional quasistatic nonlinear model for nonsimple thermoviscoelastic materials in the Kelvin-Voigt rheology, in which the elastic and the viscous stress tensor comply with a frame…

偏微分方程分析 · 数学 2024-11-20 Rufat Badal , Manuel Friedrich , Lennart Machill

We present a full two-fluid magnetohydrodynamic (MHD) description for a completely ionized hydrogen plasma, retaining the effects of the Hall current, electron pressure and electron inertia. According to this description, each plasma…

等离子体物理 · 物理学 2015-06-23 Nahuel Andrés , Carlos Gonzalez , Luis Martin , Pablo Dmitruk , Daniel Gómez

This paper is the continuation of a previous one [L. {\v{S}}amaj and B. Jancovici, 2007 {\it J. Stat. Mech.} P02002]; for a nearly classical quantum fluid in a half-space bounded by a plain plane hard wall (no image forces), we had…

统计力学 · 物理学 2009-11-13 B. Jancovici , L. Samaj

This work presents a multidisciplinary mathematical model, as a set of coupled governing equations and auxiliary relations describing the fluid-flow, thermal, and electric fields of partially-ionized plasma with low magnetic Reynolds…

等离子体物理 · 物理学 2024-11-01 Osama A. Marzouk

Three-dimensional two-layer incompressible Euler fluids are studied from a Hamiltonian perspective. A natural Hamiltonian structure for the effective 2D model described by the interface-value of the field variables is obtained by means of a…

数学物理 · 物理学 2026-04-27 R. Camassa , G. Falqui , G. Ortenzi , M. Pedroni , E. Sforza

Relativistic hydrodynamics of classic plasmas is derived from the microscopic model in the limit of ideal plasmas. The chain of equations is constructed step by step starting from the concentration evolution. It happens that the energy…

等离子体物理 · 物理学 2023-08-09 Pavel A. Andreev

This paper extends our earlier approach [cf. Phys. Plasmas 17, 032503 (2010), 23, 022308 (2016)] to obtaining a priori bounds on enstrophy in neutral fluids (R-Euler) and ideal magnetohydrodynamics (R-MHD). This results in a far-reaching…

等离子体物理 · 物理学 2018-03-06 Govind S. Krishnaswami , Sonakshi Sachdev , Anantanarayanan Thyagaraja

We develop a new framework for the modelling of charged fluid dynamics in general relativity. The model, which builds on a recently developed variational multi-fluid model for dissipative fluids, accounts for relevant effects like the…

广义相对论与量子宇宙学 · 物理学 2017-05-31 N. Andersson , K. Dionysopoulou , I. Hawke , G. L. Comer

Quark-gluon plasmas formed in heavy ion collisions at high energies are well described by ideal classical fluid equations with nearly zero viscosity. It is believed that a similar fluid permeated the entire universe at about three…

量子物理 · 物理学 2017-02-28 Mark Davidson

We present a detailed derivation of the continuity, Euler, and energy balance equations from many particle Schrodinger equation. Interparticle interaction is explicitly considered as the Coulomb interaction. We show the QHD equations in a…

等离子体物理 · 物理学 2014-07-30 P. A. Andreev , L. S. Kuz'menkov

We extend the theory for third-order structure functions in homogeneous incompressible magnetohydrodynamic (MHD) turbulence to the case in which a constant velocity shear is present. A generalization is found of the usual relation [Politano…

等离子体物理 · 物理学 2015-05-13 M. Wan , S. Servidio , S. Oughton , W. H. Matthaeus

The exact 1+3 covariant dynamical fluid equations for a multi-component plasma, together with Maxwell's equations are presented in such a way as to make them suitable for a gauge-invariant analysis of linear density and velocity…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Mattias Marklund , Peter K. S. Dunsby , Gerold Betschart , Martin Servin , Christos Tsagas

The adiabatic inhomogeneities of the scalar curvature lead to a compressible flow affecting the dynamics of the hydromagnetic nonlinearities. The influence of the plasma on the evolution of a putative magnetic field is explored with the aim…

宇宙学与河外天体物理 · 物理学 2015-06-03 Massimo Giovannini

By taking into account the radiation reaction force, we derive a set of one-fluid relativistic magnetohydrody-namics (RMHD) equations with the Landau-Lifshitz radiation reaction force based on a relativistic two-fluid plasma. These…

等离子体物理 · 物理学 2018-12-12 Wenshuai Liu , Weihao Bian , Bixuan Zhao , Liming Yu , Chan Wang