One-to-one direct modeling of experiments and astrophysical scenarios: pushing the envelope on kinetic plasma simulations

By Ricardo Fonseca, S. Martins, Luis O. Silva, J. Tonge, F. Tsung, W. Mori. 2008

209 citations recorded by the source corpus.

There are many astrophysical and laboratory scenarios where kinetic effects play an important role. These range from astrophysical shocks and plasma shell collisions to high intensity laser–plasma interactions, with applications to fast ignition and particle acceleration. Further understanding of these scenarios requires detailed numerical modeling, but fully relativistic kinetic codes are computationally intensive, and the goal of one-to-one direct modeling of such scenarios and direct comparison with experimental results is still difficult to achieve. In this paper we discuss the issues involved in performing kinetic plasma simulations of experiments and astrophysical scenarios, focusing on what needs to be achieved for one-to-one direct modeling and the computational requirements involved. We focus on code efficiency and new algorithms, specifically on parallel scalability issues, namely, on dynamic load balancing, and on high-order interpolation and boosted frame simulations to optimize simulation performance. We also discuss the new visualization and data mining tools required for these numerical experiments and recent simulation work illustrating these techniques is also presented.

Subfields: Computational Mechanics, Electrical and Electronic Engineering, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/21c7384c740e28834b4e626c439dd1ee57e7b579

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In Electrical and Electronic Engineering

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Citations in the corpus

• Observation of magnetic field generation via the Weibel instability in interpenetrating plasma flows (2013, methodology): “The PIC simulations presented here were done with the fully electromagnetic, fully relativistic, and massively parallel code OSIRIS [21, 22].”