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相关论文: 3-D SPH Simulations of Radiatively Cooling Magneti…

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We present fully three-dimensional hydrodynamical and magnetohydrodynamical simulations of supersonic, radiative cooling jets propagating into homogeneous and stratified environments based on Smoothed Particle Hydrodynamics technique.

天体物理学 · 物理学 2007-05-23 E. M. Gouveia Dal Pino , A. H. Cerqueira

In the present work, with the help of fully 3-D smooth particle magnetohydodynamic (SPMHD) simulations, we explore the nonlinear effects of magnetic fields (in close equipartition with the gas) in the structure of radiatively cooling,…

天体物理学 · 物理学 2007-05-23 Elisabete M. de Gouveia Dal Pino , Adriano H. Cerqueira

We here review the results of recent studies of magnetic field effects on the structure and evolution of overdense, radiative cooling, steady and pulsed jets which were carried out with the help of fully three-dimensional MHD simulations.…

天体物理学 · 物理学 2007-05-23 Elisabete M. de Gouveia Dal Pino , Adriano H. Cerqueira

We present multi-dimensional simulations of magnetized radiative jets appropriate to Young Stellar Objects. Magnetized jets subject to collisionally excited radiative losses have not, as yet, received extensive scrutiny. The purpose of this…

天体物理学 · 物理学 2009-10-30 A. Frank , D. Ryu , T. W. Jones , A. Noriega-Crespo

The results of MHD numerical simulations of the formation and development of magnetized jets are presented. Similarity criteria for comparisons of the results of laboratory laser experiments and numerical simulations of astrophysical jets…

(Abridged) We here investigate, by means of fully 3-D Smoothed Particle Magnetohydrodynamic numerical simulations, the effects of magnetic fields on overdense, radiatively cooling, pulsed jets, using different initial magnetic field…

天体物理学 · 物理学 2009-11-06 Adriano H. Cerqueira , Elisabete M. de Gouveia Dal Pino

We here present results of three-dimensional Smoothed Particle hydro and magnetohydrodynamics simulations of rotating jets, also including the effects of radiative cooling, precession and velocity variability. Using initial conditions and…

天体物理学 · 物理学 2009-11-10 Adriano H. Cerqueira , Elisabete M. de Gouveia Dal Pino

Astrophysical jets have been studied with observations, theoretical models and numerical simulations for decades. Recently, supersonic magnetized jets have been formed in laboratory experiments of high-energy density plasmas. I will review…

太阳与恒星天体物理 · 物理学 2011-11-21 Martín Huarte-Espinosa , Adam Frank , Eric Blackman

We investigate the effect of magnetic fields on the propagation dynamics and morphology of overdense, radiatively cooling, supermagnetosonic jets, with the help of fully three-dimensional SPMHD simulations. Evaluated for a set of parameters…

天体物理学 · 物理学 2009-10-30 Adriano H. Cerqueira , Elisabete M. de Gouveia Dal Pino

We discuss numerical results of relativistic magnetohydrodynamic (MHD) jet formation models. We first review some examples of stationary state solutions treating the collimation and acceleration process of relativistic MHD jets. We provide…

天体物理学 · 物理学 2011-03-10 Christian Fendt , Elisabetta Memola

We presents results from Smoothed Particle Magnetohydrodynamics simulations of collapsing molecular cloud cores, and dynamo amplification of the magnetic field in the presence of Mach 10 magnetised turbulence. Our star formation simulations…

太阳与恒星天体物理 · 物理学 2013-10-18 Terrence S. Tricco , Daniel J. Price , Christoph Federrath , Matthew R. Bate

We present results of new three-dimensional (3D) general-relativistic magnetohydrodynamic simulations of rapidly rotating strongly magnetized core collapse. These simulations are the first of their kind and include a microphysical…

高能天体物理现象 · 物理学 2015-02-18 P. Mösta , S. Richers , C. D. Ott , R. Haas , A. L. Piro , K. Boydstun , E. Abdikamalov , C. Reisswig , E. Schnetter

We present the results of a three-dimensional, relativistic, hydrodynamic simulation of a precessing jet into which a compact blob of matter is injected. A comparison of synthetic radio maps computed from the hydrodynamic model, taking into…

Magnetic fields are believed to play an essential role in astrophysical jets with observations suggesting the presence of helical magnetic fields. Here, we present three-dimensional (3D) ideal MHD simulationsof the Caltech plasma jet…

高能天体物理现象 · 物理学 2014-11-07 Xiang Zhai , Hui Li , Paul M. Bellan , Shengtai Li

We perform a numerical simulation of magnetohydrodynamic radially self-similar jets, whose prototype is the Blandford & Payne analytical example. The reached final steady state is valid close to the rotation axis and also at large distances…

天体物理学 · 物理学 2009-11-13 J. Gracia , N. Vlahakis , K. Tsinganos

There have been some issues in the past in attempts to simulate magnetic fields using the Smoothed Particle Hydrodynamics (SPH) method. SPH is well suited to star formation problems because of its Lagrangian nature. We present new, stable…

天体物理学 · 物理学 2009-11-10 D. J. Price , J. J. Monaghan

A set of 3D MHD simulations of magnetized jets has been performed. The jets contain an equipartition primarily poloidal magnetic field and the effect of jet density on jet dynamics and structure is evaluated. The jet is precessed at the…

天体物理学 · 物理学 2009-10-30 P. E. Hardee , D. A. Clarke , A. Rosen

We have performed numerical simulations of weakly and strongly magnetized relativistic jets embedded in a weakly and strongly magnetized stationary or mildly relativistic (0.5c) sheath using the RAISHIN code. In the numerical simulations a…

天体物理学 · 物理学 2008-11-26 Y. Mizuno , P. Hardee , K. -I. Nishikawa

This paper presents a three-dimensional simulation of chromospheric jets with twisted magnetic field lines. Detailed treatments of the photospheric radiative transfer and the equation of states allow us to model realistic thermal convection…

太阳与恒星天体物理 · 物理学 2017-10-18 H. Iijima , T. Yokoyama

The solidification behavior of liquid metal in a container under rapid cooling process is one of the major concerns to be analyzed. In order to analyze its fundamental behavior, a three- dimensional (3D) fluid dynamics simulation was…

流体动力学 · 物理学 2013-09-18 Raden Ahnaf Faqih S , Christian Fredy Naa
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