在多流体等离子体模拟中应用空间和时间自适应细化的四阶精确有限体积法

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Scott Polak, Xinfeng Gao
{"title":"在多流体等离子体模拟中应用空间和时间自适应细化的四阶精确有限体积法","authors":"Scott Polak, Xinfeng Gao","doi":"10.2140/camcos.2024.19.57","DOIUrl":null,"url":null,"abstract":"<p>A novel multifluid plasma model is developed, based on the finite-volume method, with a fourth-order accurate algorithm and solution-adaptive mesh refinement in space and time. Previously, the order of accuracy of the multifluid plasma model was verified and the solutions to common plasma test cases were demonstrated. In the present work, the multifluid plasma model is applied to solve complex test cases involving discontinuities and shocks. Discussion is thus focused on methods of numerical stabilization and strategies with adaptive mesh refinement. The results show improvements to solution stability and as much as an order of magnitude improvement in compute time due to adaptive mesh refinement. </p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Application of a fourth-order accurate finite-volume method with adaptive refinement in space and time to multifluid plasma simulations\",\"authors\":\"Scott Polak, Xinfeng Gao\",\"doi\":\"10.2140/camcos.2024.19.57\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A novel multifluid plasma model is developed, based on the finite-volume method, with a fourth-order accurate algorithm and solution-adaptive mesh refinement in space and time. Previously, the order of accuracy of the multifluid plasma model was verified and the solutions to common plasma test cases were demonstrated. In the present work, the multifluid plasma model is applied to solve complex test cases involving discontinuities and shocks. Discussion is thus focused on methods of numerical stabilization and strategies with adaptive mesh refinement. The results show improvements to solution stability and as much as an order of magnitude improvement in compute time due to adaptive mesh refinement. </p>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2024-08-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://doi.org/10.2140/camcos.2024.19.57\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.2140/camcos.2024.19.57","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

以有限体积法为基础,利用四阶精确算法和空间与时间上的求解自适应网格细化,开发了一种新型多流体等离子体模型。在此之前,已经验证了多流体等离子体模型的精度阶次,并演示了常见等离子体测试案例的解决方案。在本研究中,多流体等离子体模型被应用于解决涉及不连续和冲击的复杂测试案例。因此,讨论的重点是数值稳定方法和自适应网格细化策略。结果表明,自适应网格细化提高了求解稳定性,计算时间缩短了一个数量级。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Application of a fourth-order accurate finite-volume method with adaptive refinement in space and time to multifluid plasma simulations

A novel multifluid plasma model is developed, based on the finite-volume method, with a fourth-order accurate algorithm and solution-adaptive mesh refinement in space and time. Previously, the order of accuracy of the multifluid plasma model was verified and the solutions to common plasma test cases were demonstrated. In the present work, the multifluid plasma model is applied to solve complex test cases involving discontinuities and shocks. Discussion is thus focused on methods of numerical stabilization and strategies with adaptive mesh refinement. The results show improvements to solution stability and as much as an order of magnitude improvement in compute time due to adaptive mesh refinement.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信