ABC场电子-离子PIC模拟中的动能分配

IF 0.7 4区物理与天体物理 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Nukleonika Pub Date : 2023-03-01 DOI:10.2478/nuka-2023-0004

Qin Chen

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引用次数: 0

摘要

摘要:本文利用粒子池(PIC)数值模拟，探讨了二维静磁平衡(Arnold-Beltrami-Childress, ABC)场中电子和离子之间的动能分配。我们覆盖了更大范围的离子-电子温度组合，并得到了与先前研究的哈里斯层型磁重联模拟不同的结果。我们发现初始离子电子焓比是一个重要的指标。主导总焓的粒子种类也将主导动能增益和动量分布峰，但其他种类具有更高的非热能分数，因为两种物质具有相似的最大能量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Kinetic energy partitions in electron–ion PIC simulations of ABC fields

Abstract We explore the kinetic energy partitions between electrons and ions in the 2-D magnetostatic equilibria called Arnold–Beltrami–Childress (ABC) fields, using particle-in-cell (PIC) numerical simulations. We cover a wider range of ion–electron temperature combinations and get different results compared to previous studies of the Harris-layer-type magnetic reconnection simulations. We find that the initial ion–electron enthalpy ratio is an important indicator. The particle species that dominates the total enthalpy will also dominate the kinetic energy gains and the momentum distribution peaks, but the other species have higher nonthermal energy fractions because both species show similar maximum energies.

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来源期刊

Nukleonika 物理-无机化学与核化学

CiteScore

2.00

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： "Nukleonika" is an international peer-reviewed, scientific journal publishing original top quality papers on fundamental, experimental, applied and theoretical aspects of nuclear sciences. The fields of research include: radiochemistry, radiation measurements, application of radionuclides in various branches of science and technology, chemistry of f-block elements, radiation chemistry, radiation physics, activation analysis, nuclear medicine, radiobiology, radiation safety, nuclear industrial electronics, environmental protection, radioactive wastes, nuclear technologies in material and process engineering, radioisotope diagnostic methods of engineering objects, nuclear physics, nuclear reactors and nuclear power, reactor physics, nuclear safety, fuel cycle, reactor calculations, nuclear chemical engineering, nuclear fusion, plasma physics etc.