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Parallel Algorithm with Modulus Structure for Simulation of Seismic Wave Propagation in 3D Multiscale Multiphysics Media
[chapter]
2017
Lecture Notes in Computer Science
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(KIAM RAS) Performance aspects of collocated and staggered grids for Particle-in-Cell plasma simulation Sergey Bastrakov, Igor Surmin, Evgeny Efimenko, Arkady Gonoskov, Iosif Meyerov Software implementation ...
drug screening using BOINC-based desktop grid Natalia Nikitina, Evgeny Ivashko, Andrei Tchernykh The optimization of traffic management for cloud application and services in the virtual data center Denis ...
doi:10.1007/978-3-319-62932-2_4
fatcat:3floyq6ajjeb5aqf5ehcgnu7qe
A particle-in-cell method for the simulation of plasmas based on an unconditionally stable field solver
2016
Journal of Computational Physics
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We propose a new particle-in-cell (PIC) method for the simulation of plasmas based on a recently developed, unconditionally stable solver for the wave equation. ...
We describe the implementation in one and two dimensions for both electrostatic and electromagnetic cases, and present the results of several standard test problems, showing good agreement with theory ...
The resulting separation of charge produces cold plasma oscillation. In the 1D simulation, we set L x = 2π and = 0.1. We use a 100 cell grid and take ∆t = 0.1, and we use N p = 3600 particles. ...
doi:10.1016/j.jcp.2016.08.006
fatcat:ieqgy2fp5vfgpc56bgygatbrna
A SECOND-ORDER DIVERGENCE-CONSTRAINED MULTIDIMENSIONAL NUMERICAL SCHEME FOR RELATIVISTIC TWO-FLUID ELECTRODYNAMICS
2016
Astrophysical Journal
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2016 pre-print arXiv:1607.08487v1 fatcat:btraiyox45gknegxge7sdzzmwq
A new multidimensional simulation code for relativistic two-fluid electrodynamics (RTFED) is described. ...
or an electron-proton plasma. ...
Notice that this definition differs from the conventional Yee mesh, which is often employed in Particle-In-Cell (PIC) simulations. ...
doi:10.3847/0004-637x/831/1/100
fatcat:d4wzudurubcq5f5qswwrialpaq
Constrained transport and adaptive mesh refinement in the Black Hole Accretion Code
2019
Astronomy and Astrophysics
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The CT methods and AMR strategies discussed here are being employed in the simulations performed with BHAC used in the generation of theoretical models for the Event Horizon Telescope Collaboration. ...
This motivates the development of models for magnetohydrodynamic flows in strong gravitational fields. ...
The simulations were performed in part on the SuperMUC cluster at the LRZ in Garching, the LOEWE cluster at the CSC in Frankfurt, the Iboga cluster at the ITP Frankfurt, the HazelHen cluster at the HLRS ...
doi:10.1051/0004-6361/201935559
fatcat:dqplesv63fddzpwkzrxyqcxefe
Immersed boundary simulations of cell-cell interactions in whole blood
[article]
2021
arXiv
pre-print
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We present a new method for the geometric reconstruction of elastic surfaces simulated by the immersed boundary method with the goal of simulating the motion and interactions of cells in whole blood. ...
We find red blood cells to be crucial for understanding the motion of platelets, to the point that the geometry of the vessel wall has a negligible effect in the presence of RBCs. ...
Kirby for access to computing resources at SCI Institute. A. T. K., A. B., and A. ...
arXiv:2108.09396v1
fatcat:v5dc4px4anajzbhxzohdnb6bjq
Verification of BOUT++ by the method of manufactured solutions
2016
Physics of Plasmas
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It has been used to simulate a wide range of plasma phenomena ranging from linear stability analysis to 3D plasma turbulence, and is capable of simulating a wide range of drift-reduced plasma fluid and ...
BOUT++ is a software package designed for solving plasma fluid models. ...
To test boundary conditions and handling of staggered variables, this test was performed in x and then in y (replacing x with y=2p in the above manufactured solutions). ...
doi:10.1063/1.4953429
fatcat:rbq7sn272bbt5pimbo5yg5fmry
MPI-AMRVAC FOR SOLAR AND ASTROPHYSICS
2014
Astrophysical Journal Supplement Series
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2014 pre-print arXiv:1407.2052v1 fatcat:g35jice6ifcsjcbxba6cslqnju
With the new distinction between active and passive grid cells, MPI-AMRVAC is ideally suited to simulate evolutions where parts of the solution are controlled analytically, or have a tendency to progress ...
In this paper we present an update on the open source MPI-AMRVAC simulation toolkit where we focus on solar- and non-relativistic astrophysical magneto-fluid dynamics. ...
(particle in cell) simulations have been performed to date (see the discussion in . ...
doi:10.1088/0067-0049/214/1/4
fatcat:z6pck7in5fdrxdf4rw62dfyzae
Exploiting Laboratory and Heliophysics Plasma Synergies
2010
Energies
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Research synergies for these new tools are primarily in the areas of magnetic reconnection, plasma charged particle acceleration, plasma wave propagation and turbulence in a diverging magnetic field, plasma ...
Recent advances in space-based heliospheric observations, laboratory experimentation, and plasma simulation codes are creating an exciting new cross-disciplinary opportunity for understanding fast energy ...
Acknowledgements This review was supported by the Naval Research Laboratory and the Office of Naval Research. Conversations with Thomas Mehlhorn (NRL PPD Superintendent) are gratefully acknowledged. ...
doi:10.3390/en30501014
fatcat:vq5pkd4k45fctkq4ddipu25cha
Interaction of a thin shock with turbulence. I. Effect on shock structure: Analytic model
2008
Physics of Fluids
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It has been used to simulate a wide range of plasma phenomena ranging from linear stability analysis to 3D plasma turbulence and is capable of simulating a wide range of drift-reduced plasma fluid and ...
BOUTþþ is a software package designed for solving plasma fluid models. ...
To test boundary conditions and handling of staggered variables, this test was performed in x and then in y (replacing x with y=2p in the above manufactured solutions). ...
doi:10.1063/1.3041706
fatcat:gjlu5lc4x5cyfbsrja27kmvgku
Investigating the influence of magnetic fields upon structure formation with amiga- a c code for cosmological magnetohydrodynamics
2010
Monthly notices of the Royal Astronomical Society
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It combines an N-body code with an Eulerian grid-based solver for the full set of MHD equations in order to conduct simulations of dark matter, baryons and magnetic fields in a self-consistent way in a ...
As a tool for carrying out such simulations, we present our new numerical code AMIGA. ...
The simulations presented herein have been performed on the BABEL cluster at the Astrophysical Institute Potsdam (AIP). ...
doi:10.1111/j.1365-2966.2009.16144.x
fatcat:ck7lawfdmndyhnsatqp34hfxni
A Multiscale Haemorheological Computer-Based Model of Atherosclerosis: An In-Depth Investigation of Erythrocytes-Driven Flow Characteristics in Atheroma Development
2016
Journal of Biomedical Engineering and Medical Devices
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The latest seems to be caused by the momentum interchange due to the collision of the particles (blood cells) with each other, with the vessel wall, and with the fluid phase (plasma). ...
The cellular composition of the blood was modelled using a multiphase fluid dynamics method by computing both an Eulerian fluid domain for modelling blood plasma, and a Lagrangian solid domain that represented ...
Simeoni is thanked for kindly receiving the author during a research visit at the University of Sao Paulo (USP). Dr. ...
doi:10.4172/2475-7586.1000119
fatcat:fx2md5rknfcqvifudkqslwzt44
In-situ visualization library for Yin-Yang grid simulations
2021
Earth, Planets and Space
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We propose an in-situ visualization method dedicated to the Yin-Yang grid simulations and demonstrate its effectiveness through sample simulations. ...
The selection of an appropriate method or tool is essential to efficiently perform in-situ visualization in parallelized large-scale computer simulations that run on supercomputers. ...
A part of this work was performed on "Plasma Simulator" (NEC SX-Aurora TSUBASA) of NIFS with the support and under the auspices of the NIFS Collaboration Research program (NIFS15KNSS062). ...
doi:10.1186/s40623-021-01485-2
fatcat:32qqjalpg5d6rdwnjzan32lyjm
Contents
2019
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)
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High-speed Target for Random PRI and Staggered PW Radar . . . . . . . 1037 The Use of Phase-shift Keyed Signals with a Zero Autocorrelation Zone in a Multi-position Radar System for Searching and Detecting ...
Propagation in a Dust Plasma of a DC Glow Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1327 Analysis and Optimization of Microwave Transmission in a Magnetized Plasma-Metal ...
doi:10.1109/piers-spring46901.2019.9017748
fatcat:lmmr7cnm7nelbbz3f6arofik4q
Multidimensional Hall magnetohydrodynamics with isotropic or anisotropic thermal pressure: Numerical scheme and its validation using solitary waves
2017
Journal of Computational Physics
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2016 pre-print arXiv:1610.09159v1 fatcat:u6wcn5c5kbf5fom5flxm622dra
We present a numerical solver for plasma dynamics simulations in Hall magnetohydrodynamic (HMHD) approximation in one, two and three dimensions. ...
Quantitative tests of accuracy and performance of the implemented code show the fidelity of the proposed approach. ...
The discussion presented in the paper reflects only the authors' view and the European Commission is not responsible for any use that may be made of the information it contains. ...
doi:10.1016/j.jcp.2016.10.058
fatcat:sziksj6mtbcrlbeceefrtyjcbq
Modelling Seismic Wave Propagation for Geophysical Imaging
[chapter]
2012
Seismic Waves - Research and Analysis
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Acknowledgements We are gratefull to René-Édouard Plessix (SHELL) and Henri Calandra (TOTAL) for fruitful discussions. This work was partially performed using HPC resources from GENCI- ...
Cell structure for the full staggered grid (top), the partial staggered grid (bottom left) and the full grid (bottom right, Stress tensor is denoted by σ, particle velocity by v and the density by ρ as ...
This pattern results from the fact that one cell out of two is excited in the DG formulation because the DG stencil does not embed a staggered-grid structure (the unexcited grid is not stored in staggered-grid ...
doi:10.5772/30219
fatcat:4h2ysh6dsfefnga6ystdvyqbxe
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