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相关论文: PIERNIK mhd code - a multi-fluid, non-ideal extens…

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We present a new multi-fluid, grid MHD code PIERNIK, which is based on the Relaxing TVD scheme (Jin & Xin, 1995). The original scheme (see Trac & Pen (2003) and Pen et al. (2003)) has been extended by an addition of dynamically independent,…

天体物理学 · 物理学 2013-07-25 Michał Hanasz , Kacper Kowalik , Dominik Wóltański , Rafał Pawłaszek

We present a new multi-fluid, grid MHD code PIERNIK, which is based on the Relaxing TVD scheme (Jin and Xin, 1995). The original scheme (see Trac & Pen (2003) and Pen et al. (2003)) has been extended by an addition of dynamically…

天体物理学 · 物理学 2010-05-31 Michał Hanasz , Kacper Kowalik , Dominik Wóltański , Rafał Pawłaszek , Kacper Kornet

We present a new multi-fluid, grid MHD code PIERNIK, which is based on the Relaxing TVD scheme. The original scheme has been extended by an addition of dynamically independent, but interacting fluids: dust and a diffusive cosmic ray gas,…

天体物理学 · 物理学 2010-05-31 Michał Hanasz , Kacper Kowalik , Dominik Wóltański , Rafał Pawłaszek

Piernik is a multi-fluid grid magnetohydrodynamic (MHD) code based on the Relaxing Total Variation Diminishing (RTVD) conservative scheme. The original code has been extended by addition of dust described within the particle approximation.…

地球与行星天体物理 · 物理学 2016-08-14 Joanna Drążkowska , Michał Hanasz , Kacper Kowalik

We present a new particle module of the magnetohydrodynamic (MHD) Piernik code. The original multi-fluid grid code based on the Relaxing Total Variation Diminishing (RTVD) scheme has been extended by addition of dust described within the…

地球与行星天体物理 · 物理学 2016-08-16 Joanna Drążkowska , Michał Hanasz , Kacper Kowalik

We investigate streaming instability using two-fluid approximation (neutral gas and dust) in a quasi-global, unstratified protoplanetary disc, with the help of PIERNIK code. We compare amplification rate of the eigen-mode in numerical…

地球与行星天体物理 · 物理学 2013-07-24 Kacper Kowalik , Michal Hanasz , Dominik Wóltański , Artur Gawryszczak

We present a multi-dimensional numerical code to solve isothermal magnetohydrodynamic (IMHD) equations for use in modeling astrophysical flows. First, we have built a one-dimensional code which is based on an explicit finite-difference…

天体物理学 · 物理学 2009-10-31 Jongsoo Kim , Dongsu Ryu , T. W. Jones , S. S. Hong

This work describes a new 1D hybrid approach for modeling atmospheric pressure discharges featuring complex chemistry. In this approach electrons are described fully kinetically using Particle-In-Cell/Monte-Carlo (PIC/MCC) scheme, whereas…

等离子体物理 · 物理学 2016-01-20 Denis Eremin , Torben Hemke , Thomas Mussenbrock

A new code, named MAP, is written in Fortran language for magnetohydrodynamics (MHD) calculation with the adaptive mesh refinement (AMR) and Message Passing Interface (MPI) parallelization. There are several optional numerical schemes for…

天体物理仪器与方法 · 物理学 2012-04-27 R. L. Jiang , C. Fang , P. F. Chen

Heliospheric plasmas require multi-scale and multi-physics considerations. On one hand, MHD codes are widely used for global simulations of the solar-terrestrial environments, but do not provide the most elaborate physical description of…

The explicit quasi-monotonic conservative TVD scheme and numerical method for the solution of the gravitational MHD equations are developed. The 2D numerical code for the simulation of multidimensional selfgravitating MHD flows on the…

天体物理学 · 物理学 2007-05-23 Alexander E. Dudorov , Oleg A. Kuznetsov , Andrey G. Zhilkin

Modeling multi-scale collisionless magnetized processes constitutes an important numerical challenge. By treating electrons as a fluid and ions kinetically, the so-called hybrid Particle-In-Cell (PIC) codes represent a promising…

The diversity of the structures recently observed in protoplanetary discs (PPDs) with the new generation of high-resolution instruments have made more acute the challenging questions that planet-formation models must answer. The challenge…

地球与行星天体物理 · 物理学 2023-08-01 Steven Rendon Restrepo , Pierre Barge , Radim Vavrik

An algorithm for simulating self-gravitating cosmological astrophysical fluids is presented. The advantages include a large dynamic range, parallelizability, high resolution per grid element and fast execution speed. The code is based on a…

天体物理学 · 物理学 2009-10-30 Ue-Li Pen

Hybrid-VPIC is an extension of the open-source high-performance particle-in-cell (PIC) code VPIC incorporating hybrid kinetic ion/fluid electron solvers. This paper describes the models that are available in the code and gives an overview…

等离子体物理 · 物理学 2023-06-14 Ari Le , Adam Stanier , Lin Yin , Blake Wetherton , Brett Keenan , Brian Albright

We report a new finite-difference scheme for two-dimensional magnetohydrodynamics (MHD) simulations, with and without rotation, in unstructured grids with quadrilateral cells. The new scheme is implemented within the code VULCAN/2D, which…

天体物理学 · 物理学 2009-11-13 Eli Livne , Luc Dessart , Adam Burrows , Casey A. Meakin

We here present a new version of the publicly available general relativistic magnetohydrodynamic (GRMHD) code $\texttt{Spritz}$, which now includes an approximate neutrino leakage scheme able to handle neutrino cooling and heating. The…

This paper describes the design and implementation of our new multi-group, multi-dimensional radiation hydrodynamics (RHD) code Fornax and provides a suite of code tests to validate its application in a wide range of physical regimes.…

天体物理仪器与方法 · 物理学 2019-03-06 M. Aaron Skinner , Joshua C. Dolence , Adam Burrows , David Radice , David Vartanyan

We present for astrophysical use a multi-dimensional numerical code to solve the equations for ideal magnetohydrodynamics (MHD). It is based on an explicit finite difference method on an Eulerian grid, called the Total Variation Diminishing…

天体物理学 · 物理学 2016-08-30 Dongsu Ryu , T. W. Jones , Adam Frank

We adapt a modern scheme of smoothed particle hydrodynamics (SPH) to our tree N-body/SPH galactic chemodynamics code GCD+. The applied scheme includes imple- mentations of the artificial viscosity switch and artificial thermal conductivity…

宇宙学与河外天体物理 · 物理学 2015-05-13 Daisuke Kawata , Takashi Okamoto , Brad K. Gibson , David J. Barnes , Renyue Cen
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