Data from: Data-driven analysis of oscillations in Hall thruster simulations

Data from: Data-driven analysis of oscillations in Hall thruster simulations - Authors: Davide Maddaloni, Adrián Domínguez Vázquez, Filippo Terragni, Mario Merino - Contact email: [e-mail] - Date: 2022-03-24 - Keywords: higher order dynamic mode decomposition, hall effect thruster, breathing mode, ion transit time, data-driven analysis - Version: 1.0.4 - Digital Object Identifier (DOI): 10.5281/zenodo.6359505 - License: This dataset is made available under the Open Data Commons Attribution License Abstract This dataset contains the outputs of the HODMD algorithm and the original simulations used in: Davide Maddaloni, Adrián Domínguez Vázquez, Filippo Terragni, Mario Merino, "Data-driven analysis of oscillations in Hall thruster simulations", Plasma Sources Science and Technology Which is currently in the final stages of the review process. Dataset description The simulations from which data stems have been produced using the full 2D hybrid PIC/fluid code HYPHEN, while the HODMD results have been produced using an adaptation of the original HODMD algorithm with an improved amplitude calculation routine. Please refer to the relative article for further details regarding any of the parameters and/or configurations. Data files The data files are in standard Matlab .mat format. A recent version of Matlab is recommended. The HODMD outputs are collected within 18 different files, subdivided into three groups, each one referring to a different case. For the file names, "case1" refers to the nominal case, "case2" refers to the low voltage case and "case3" refers to the high mass flow rate case. Following, the variables are referred as: "n" for plasma density "Te" for electron temperature "phi" for plasma potential "ji" for ion current density (both single and double charged ones) "nn" for neutral density "Ez" for axial electric field "Si" for ionization production term "vi1" for single charged ions axial velocity In particular, axial electric field, ionization production term and single charged ions axial velocity are available only for the first case. Such files have a cell structure: the first row contains the frequencies (in Hz), the second row contains the normalized modes (alongside their complex conjugates), the third row collects the growth rates (in 1/s) while the amplitudes (dimensionalized) are collected within the last row. Additionally, the time vector is simply given as "t", common to all cases and all variables. Citation Works using this dataset or any part of it in any form shall cite it as follows. The preferred means of citation is to reference the publication associated to this dataset, as soon as it is available. Optionally, the dataset may be cited directly by referencing the DOI: 10.5281/zenodo.6359505. Acknowledgments This work has been supported by the Madrid Government (Comunidad de Madrid) under the Multiannual Agreement with UC3M in the line of ‘Fostering Young Doctors Research’ (MARETERRA-CM-UC3M), and in the context of the V PRICIT (Regional Programme of Research and Technological Innovation). F. Terragni was also supported by the Fondo Europeo de Desarrollo Regional, Ministerio de Ciencia, Innovación y Universidades - Agencia Estatal de Investigación, under grants MTM2017-84446-C2-2-R and PID2020-112796RB-C22.数据集来源：《霍尔推力器模拟中的振荡数据驱动分析》——作者：Davide Maddaloni、Adrián Domínguez Vázquez、Filippo Terragni、Mario Merino——联系邮箱：[e-mail]——发布日期：2022年3月24日——关键词：高阶动态模态分解（higher order dynamic mode decomposition, HODMD）、霍尔推力器（Hall thruster）、呼吸模式（breathing mode）、离子渡越时间（ion transit time）、数据驱动分析（data-driven analysis）——版本：1.0.4——数字对象标识符（DOI）：10.5281/zenodo.6359505——许可协议：本数据集遵循开放数据通用署名许可（Open Data Commons Attribution License）发布 摘要 本数据集包含《"Data-driven analysis of oscillations in Hall thruster simulations"》一文中所用的高阶动态模态分解（HODMD）算法输出结果与原始模拟数据，该论文作者为Davide Maddaloni、Adrián Domínguez Vázquez、Filippo Terragni、Mario Merino，发表于《Plasma Sources Science and Technology》，目前处于审稿最终阶段。 数据集说明 本数据集所用的模拟数据由全二维混合粒子网格（Particle-in-Cell, PIC）/流体混合代码HYPHEN生成，高阶动态模态分解（HODMD）结果则基于改进后的原始HODMD算法生成，其振幅计算程序已得到优化。如需了解任意参数或配置的详细信息，请参阅相关研究论文。 数据文件说明 所有数据文件均采用标准Matlab .mat格式，推荐使用较新版本的Matlab进行读取。高阶动态模态分解（HODMD）的输出结果共包含18个不同的数据文件，分为3组，分别对应3种不同的模拟工况。文件名规则如下：'case1'代表标准工况，'case2'代表低电压工况，'case3'代表高质量流量工况。各变量的命名规则为：'n'表示等离子体密度，'Te'表示电子温度，'phi'表示等离子体电势，'ji'表示离子电流密度（包含单电荷与双电荷离子），'nn'表示中性粒子密度，'Ez'表示轴向电场，'Si'表示电离产率项，'vi1'表示单电荷离子轴向速度。其中，轴向电场、电离产率项以及单电荷离子轴向速度仅在标准工况（case1）中提供。数据文件采用元胞数组结构：第一行存储频率（单位：Hz），第二行存储归一化模态（及其复共轭），第三行存储增长率（单位：1/s），最后一行存储量纲化后的振幅。此外，所有工况与变量共用的时间向量以't'命名。 引用规范 任何以任何形式使用本数据集或其部分内容的研究工作，需遵循以下引用规则。首选引用方式为引用本数据集关联的正式发表论文（待正式出版后）。也可直接通过引用该数据集的DOI：10.5281/zenodo.6359505 进行标注。 致谢 本研究得到马德里自治区（Comunidad de Madrid）资助，依托与马德里卡洛斯三世大学（Universidad Carlos III de Madrid, UC3M）的年度合作协议，在“青年学者研究培育”项目（MARETERRA-CM-UC3M）框架下完成，并纳入V PRICIT区域研究与技术创新计划。F. Terragni同时得到欧洲区域发展基金、西班牙科学与创新部-国家研究局的资助，项目编号为MTM2017-84446-C2-2-R与PID2020-112796RB-C22。