Study of energy parameters in non-equilibrium supersonic jets at low gas pressure using the data from molecular-beam diagnostics

IF 0.5 4区工程技术 Q4 ENGINEERING, AEROSPACE

Thermophysics and Aeromechanics Pub Date : 2026-09-19 DOI:10.1134/S0869864326020022

A. E. Zarvin, E. D. Dering, V. V. Dubrovin, V. V. Kalyada

{"title":"Study of energy parameters in non-equilibrium supersonic jets at low gas pressure using the data from molecular-beam diagnostics","authors":"A. E. Zarvin, E. D. Dering, V. V. Dubrovin, V. V. Kalyada","doi":"10.1134/S0869864326020022","DOIUrl":null,"url":null,"abstract":"<div><p>The paper deals with an issue of extending the experimental capabilities in the study of gas dynamics for rarefied gas jets through using new diagnostic tools for evaluating the energy parameters of a flow. The study considers the known approaches to measuring temperature in a rarefied gas flow. We provide a detailed description of the presented method and equipment for measuring the transverse density (or intensity) profiles in a molecular beam and deriving the perpendicular speed ratio. Comparison of the experimental data with available data from theoretical models confirmed the reliability of gained information. The possibilities and conditions for calculating the translational (perpendicular) temperature were examined. The analysis covers the error and the reliability range of obtained results as well as the influence of skimmer interaction and background gas penetration on the recorded parameters. In addition, the possibility of expanding the investigation range using the selected method was considered.</p></div>","PeriodicalId":800,"journal":{"name":"Thermophysics and Aeromechanics","volume":"33 2","pages":"211 - 233"},"PeriodicalIF":0.5000,"publicationDate":"2026-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thermophysics and Aeromechanics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0869864326020022","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, AEROSPACE","Score":null,"Total":0}

引用次数: 0

Abstract

The paper deals with an issue of extending the experimental capabilities in the study of gas dynamics for rarefied gas jets through using new diagnostic tools for evaluating the energy parameters of a flow. The study considers the known approaches to measuring temperature in a rarefied gas flow. We provide a detailed description of the presented method and equipment for measuring the transverse density (or intensity) profiles in a molecular beam and deriving the perpendicular speed ratio. Comparison of the experimental data with available data from theoretical models confirmed the reliability of gained information. The possibilities and conditions for calculating the translational (perpendicular) temperature were examined. The analysis covers the error and the reliability range of obtained results as well as the influence of skimmer interaction and background gas penetration on the recorded parameters. In addition, the possibility of expanding the investigation range using the selected method was considered.

查看原文本刊更多论文

利用分子束诊断数据研究低气压下非平衡超音速射流的能量参数

本文讨论了如何利用新的诊断工具来评估气流的能量参数，从而扩大稀薄气流动力学研究的实验能力。该研究考虑了在稀薄气体流动中测量温度的已知方法。我们提供了一个详细的描述的方法和设备，用于测量横向密度（或强度）分布在分子束和推导垂直速度比。将实验数据与理论模型的现有数据进行比较，证实了所得信息的可靠性。研究了计算平动（垂直）温度的可能性和条件。分析了所得结果的误差和可靠性范围，以及撇油器相互作用和背景气体穿透对记录参数的影响。此外，还考虑了利用所选方法扩大调查范围的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Thermophysics and Aeromechanics THERMODYNAMICS-MECHANICS

CiteScore

0.90

自引率

40.00%

发文量

审稿时长

>12 weeks

期刊介绍： The journal Thermophysics and Aeromechanics publishes original reports, reviews, and discussions on the following topics: hydrogasdynamics, heat and mass transfer, turbulence, means and methods of aero- and thermophysical experiment, physics of low-temperature plasma, and physical and technical problems of energetics. These topics are the prior fields of investigation at the Institute of Thermophysics and the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences (SB RAS), which are the founders of the journal along with SB RAS. This publication promotes an exchange of information between the researchers of Russia and the international scientific community.