三维复杂等离子体中激波锋的结构

IF 1.3 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

JETP Letters Pub Date : 2025-07-18 DOI:10.1134/S0021364025606438

D. A. Zamorin, A. V. Zobnin, A. M. Lipaev, R. A. Syrovatka, V. N. Naumkin, A. D. Usachev, O. D. Kononenko, M. H. Toma, M. Kretschmer, C.-R. Du, O. F. Petrov

{"title":"三维复杂等离子体中激波锋的结构","authors":"D. A. Zamorin, A. V. Zobnin, A. M. Lipaev, R. A. Syrovatka, V. N. Naumkin, A. D. Usachev, O. D. Kononenko, M. H. Toma, M. Kretschmer, C.-R. Du, O. F. Petrov","doi":"10.1134/S0021364025606438","DOIUrl":null,"url":null,"abstract":"<p>A strongly nonlinear density wave transforming into a shock wave in a three-dimensional complex plasma of a direct current gas discharge has been studied using the scientific instrument Plasmakristall-4 under microgravity conditions. The pressure drop of the plasma–dust structure in the wave dominates over the friction against the neutral gas under the chosen experimental conditions. The velocity of the shock wave and the velocities of individual microparticles have been determined. The velocity and concentration profiles of microparticles in the developing shock wave have been reconstructed. Good agreement between the experimental profiles and the results of molecular dynamics simulations has been obtained. The estimates have also shown that the Mach number in the incoming flow is 4.3.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 11","pages":"853 - 858"},"PeriodicalIF":1.3000,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025606438.pdf","citationCount":"0","resultStr":"{\"title\":\"Structure of a Shock Front in a Three-Dimensional Complex Plasma\",\"authors\":\"D. A. Zamorin, A. V. Zobnin, A. M. Lipaev, R. A. Syrovatka, V. N. Naumkin, A. D. Usachev, O. D. Kononenko, M. H. Toma, M. Kretschmer, C.-R. Du, O. F. Petrov\",\"doi\":\"10.1134/S0021364025606438\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A strongly nonlinear density wave transforming into a shock wave in a three-dimensional complex plasma of a direct current gas discharge has been studied using the scientific instrument Plasmakristall-4 under microgravity conditions. The pressure drop of the plasma–dust structure in the wave dominates over the friction against the neutral gas under the chosen experimental conditions. The velocity of the shock wave and the velocities of individual microparticles have been determined. The velocity and concentration profiles of microparticles in the developing shock wave have been reconstructed. Good agreement between the experimental profiles and the results of molecular dynamics simulations has been obtained. The estimates have also shown that the Mach number in the incoming flow is 4.3.</p>\",\"PeriodicalId\":604,\"journal\":{\"name\":\"JETP Letters\",\"volume\":\"121 11\",\"pages\":\"853 - 858\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2025-07-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1134/S0021364025606438.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JETP Letters\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0021364025606438\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JETP Letters","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S0021364025606438","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

利用科学仪器Plasmakristall-4研究了在微重力条件下，在直流气体放电的三维复杂等离子体中，强非线性密度波转化为激波的过程。在选定的实验条件下，等离子体尘埃结构在波中的压降大于与中性气体的摩擦。冲击波的速度和单个微粒的速度已被确定。重建了发展中的激波中微粒的速度和浓度分布。实验结果与分子动力学模拟结果吻合较好。估算结果还表明，来流马赫数为4.3。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Structure of a Shock Front in a Three-Dimensional Complex Plasma

A strongly nonlinear density wave transforming into a shock wave in a three-dimensional complex plasma of a direct current gas discharge has been studied using the scientific instrument Plasmakristall-4 under microgravity conditions. The pressure drop of the plasma–dust structure in the wave dominates over the friction against the neutral gas under the chosen experimental conditions. The velocity of the shock wave and the velocities of individual microparticles have been determined. The velocity and concentration profiles of microparticles in the developing shock wave have been reconstructed. Good agreement between the experimental profiles and the results of molecular dynamics simulations has been obtained. The estimates have also shown that the Mach number in the incoming flow is 4.3.

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

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.