Results 11 to 20 of about 4,205 (236)
Electron temperature in magnetohydrodynamic generators [PDF]
In this note the author has derived expressions for the electron temperature in a linear magnetohydrodynamic generator for three different electrode configurations. In contrast to earlier investigations (which assumed an electron collision frequency independent of electron velocity v), the electron collision frequency is assumed to be proportional to ...
M. S. Sodha
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Spritz: general relativistic magnetohydrodynamics with neutrinos [PDF]
Abstract We here present a new version of the publicly available general relativistic magnetohydrodynamic (GRMHD) code Spritz, which now includes an approximate neutrino leakage scheme able to handle neutrino cooling and heating. The leakage scheme is based on the publicly available ZelmaniLeak code, with a few modifications in order to ...
F Cipolletta+6 more
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iharm3D: Vectorized General Relativistic Magnetohydrodynamics [PDF]
4 pages, 2 figures.
Ben Prather+6 more
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NONEQUILIBRIUM IONIZATION IN MAGNETOHYDRODYNAMIC GENERATORS [PDF]
The steady state ionization of a gas in which the electrons are hot and the atoms cool is investigated. The rate equations governing ionization, excitation, recombination, and de-excitation are solved for a model system using rate coefficients appropriate to the Cs atom.
David J. BenDaniel, S. Tamor
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Swift generator for three-dimensional magnetohydrodynamic turbulence [PDF]
Magnetohydrodynamic turbulence is central to laboratory and astrophysical plasmas, and is invoked for interpreting many observed scalings. Verifying predicted scaling law behavior requires extreme-resolution direct numerical simulations (DNS), with needed computing resources excluding systematic parameter surveys.
Jean-Baptiste Durrive+5 more
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Generalized Magnetofluid Connections in Relativistic Magnetohydrodynamics [PDF]
The concept of magnetic connections is extended to non-ideal relativistic magnetohydrodynamical plasmas. Adopting a general set of equations for relativistic magnetohydrodynamics including thermal-inertial, thermal electromotive, Hall and current-inertia effects, we derive a new covariant connection equation showing the existence of generalized ...
F. A. Asenjo, COMISSO, LUCA
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Performance of magnetohydrodynamic generator in the inlet region
In this analysis, the velocity and the current distributions and the efficiency of the MHD generator in the inlet region of the duct are analysed for the case when the conducting fluid enters the duct with a uniform velocity. It is found that the Hall and the ionslip currents produce fluctuations in the current components.
M. L. Mittall+2 more
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Generalized reduced magnetohydrodynamic equations [PDF]
A new derivation of reduced magnetohydrodynamic (MHD) equations is presented. A multiple-time-scale expansion is employed. It has the advantage of clearly separating the three time scales of the problem associated with (1) MHD equilibrium, (2) fluctuations whose wave vector is aligned perpendicular to the magnetic field, and (3) those aligned parallel ...
James D. Callen+2 more
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Seawater Magnetohydrodynamics Power Generator / Hydrogen Generator [PDF]
A seawater magnetohydrodynamics (MHD) power generator / hydrogen generator is expected to become popular with the development of superconducting technology because of low loss and high efficiency. We have designed a new helical-type seawater MHD generator using a solenoid superconducting magnet, by considering the experimental results for a helical ...
Minoru Takeda
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General Relativistic Magnetohydrodynamics Mean-Field Dynamos [PDF]
Large-scale, ordered magnetic fields in several astrophysical sources are supposed to be originated, and maintained against dissipation, by the combined amplifying action of rotation and small-scale turbulence. For instance, in the solar interior, the so-called α−Ω mean-field dynamo is known to be responsible for the observed 22-years magnetic cycle ...
Luca Del Zanna +4 more
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