Time Dependent Radiation Hydrodynamics on a Moving Mesh
arXiv:2002.08377 · doi:10.1093/mnras/staa573
Abstract
We describe the structure and implementation of a radiation hydrodynamic solver for MANGA, the moving-mesh hydrodynamics module of the large-scale parallel code, Charm N-body GrAvity solver (ChaNGa). We solve the equations of time dependent radiative transfer using a reduced speed of light approximation following the algorithm of Jiang et al (2014). By writing the radiative transfer equations as a generalized conservation equation, we solve the transport part of these equations on an unstructured Voronoi mesh. We then solve the source part of the radiative transfer equations following Jiang et al (2014) using an implicit solver, and couple this to the hydrodynamic equations. The use of an implicit solver ensure reliable convergence and preserves the conservation properties of these equations even in situations where the source terms are stiff due to the small coupling timescales between radiation and matter. We present the results of a limited number of test cases (energy conservation, momentum conservation, dynamic diffusion, linear waves, crossing beams, and multiple shadows) to show convergence with analytic results and numerical stability. We also show that it produces qualitatively the correct results in the presence of multiple sources in the optically thin case.
13 pages, 8 figures, accepted to MNRAS
References in corpus (44)
- The cosmological simulation code GADGET-2
- Modules for Experiments in Stellar Astrophysics (MESA)
- Modules for Experiments in Stellar Astrophysics (MESA): Giant Planets, Oscillations, Rotation, and Massive Stars
- Modules for Experiments in Stellar Astrophysics (MESA): Binaries, Pulsations, and Explosions
- E pur si muove: Galiliean-invariant cosmological hydrodynamical simulations on a moving mesh
- Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
- A Multi-Code Analysis Toolkit for Astrophysical Simulation Data
- GIZMO: A New Class of Accurate, Mesh-Free Hydrodynamic Simulation Methods
- Star Formation and Feedback in Smoothed Particle Hydrodynamic Simulations--I. Isolated Galaxies
- The Enrichment of the Intergalactic Medium with Adiabatic Feedback I: Metal Cooling and Metal Diffusion
- Improving the convergence properties of the moving-mesh code AREPO
- Three-Dimensional General Relativistic Radiation Magnetohydrodynamical Simulation of Super-Eddington Accretion, using a new code HARMRAD with M1 Closure
- Magnetohydrodynamics on an unstructured moving grid
- A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes
- Gasoline2: A Modern SPH Code
- An Extension of the Athena++ Code Framework for GRMHD Based on Advanced Riemann Solvers and Staggered-Mesh Constrained Transport
- A scheme for radiation pressure and photon diffusion with the M1 closure in RAMSES-RT
- Direct Numerical Simulation of Radiation Pressure-Driven Turbulence and Winds in Star Clusters and Galactic Disks
- A Module for Radiation Hydrodynamic Calculations With ZEUS-2D Using Flux-Limited Diffusion
- Simulating cosmic ray physics on a moving mesh
- Equations and Algorithms for Mixed Frame Flux-Limited Diffusion Radiation Hydrodynamics
- Hydrodynamic moving-mesh simulations of the common envelope phase in binary stellar systems
- Radiation hydrodynamics with Adaptive Mesh Refinement and application to prestellar core collapse. I Methods
- TESS: A Relativistic Hydrodynamics Code on a Moving Voronoi Mesh
- A New Open-Source Nuclear Equation of State Framework based on the Liquid-Drop Model with Skyrme Interaction
- A Godunov Method for Multidimensional Radiation Magnetohydrodynamics based on a variable Eddington tensor
- A Radiation Transfer Solver for Athena using Short Characteristics
- AREPO-RT: Radiation hydrodynamics on a moving mesh
- Beyond Flux-Limited Diffusion: Parallel Algorithms for Multidimensional Radiation Hydrodynamics
- A Two-moment Radiation Hydrodynamics Module in Athena Using a Time-explicit Godunov Method
- Crash: A Block-Adaptive-Mesh Code for Radiative Shock Hydrodynamics - Implementation and Verification
- An Algorithm for Radiation Magnetohydrodynamics Based on Solving the Time-dependent Transfer Equation
- Radiation Feedback in ULIRGS: Are Photons Movers and Shakers?
- Semi-implicit anisotropic cosmic ray transport on an unstructured moving mesh
- Magnetically-levitating disks around supermassive black holes
- DISCO: A 3D Moving-Mesh Magnetohydrodynamics Code Designed for the Study of Astrophysical Disks
- A moving mesh unstaggered constrained transport scheme for magnetohydrodynamics
- Common Envelope Evolution on a Moving Mesh
- A Constrained Transport Scheme for MHD on Unstructured Static and Moving Meshes
- Magnetized Moving Mesh Merger of a Carbon-Oxygen White Dwarf Binary
- Rich: Open Source Hydrodynamic Simulation on a Moving Voronoi Mesh
- Dusty Cloud Acceleration by Radiation Pressure in Rapidly Star-Forming Galaxies
- The moving mesh code Shadowfax
- A Moving Mesh Hydrodynamic Solver for ChaNGa
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- Ice Age : Chemo-dynamical modeling of Cha-MMS1 to predict new solid-phase species for detection with JWST
- The Sweep Method for radiative Transfer in Arepo
- Moving and Reactive Boundary Conditions in Moving-Mesh Hydrodynamics
- The Effect of Impact Parameter on Tidal Disruption Events
- Multigroup Radiation Diffusion on a Moving Mesh: Implementation in RICH and Application to Tidal Disruption Events