E. A. Karnozova, I. A. Znamenskaya, V. V. Gubanov, A. A. Filatov, T. A. Kuli-Zade, N. N. Sysoev
{"title":"Gasdynamic and Thermal Processes Accompanying the Unsteady Interaction of a Shock Wave with a Blunt Cylinder in a Channel","authors":"E. A. Karnozova, I. A. Znamenskaya, V. V. Gubanov, A. A. Filatov, T. A. Kuli-Zade, N. N. Sysoev","doi":"10.1134/S0015462826604171","DOIUrl":null,"url":null,"abstract":"<p>The thermal processes accompanying the unsteady interaction between a plane shock wave with the Mach numbers 2.0 to 4.5 and a blunt cylinder is experimentally investigated in the test section of the channel of a shock tube. The relationship between the gasdynamic and thermal processes in the stages of shock wave diffraction and the cocurrent flow past the model and the channel walls is established on the basis of high-speed shadowgraphy (150 000 frames per sec) and infrared thermography (1.5 to 2.8 μm). It is shown that the time of recording infrared radiation from the inner quartz channel walls in the complicated unsteady flow is not greater than 500 to 700 μs and that of radiation from the surface of the cylinder model in flow is not greater than 40 ms.</p>","PeriodicalId":560,"journal":{"name":"Fluid Dynamics","volume":"61 2","pages":""},"PeriodicalIF":0.6000,"publicationDate":"2026-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fluid Dynamics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0015462826604171","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
The thermal processes accompanying the unsteady interaction between a plane shock wave with the Mach numbers 2.0 to 4.5 and a blunt cylinder is experimentally investigated in the test section of the channel of a shock tube. The relationship between the gasdynamic and thermal processes in the stages of shock wave diffraction and the cocurrent flow past the model and the channel walls is established on the basis of high-speed shadowgraphy (150 000 frames per sec) and infrared thermography (1.5 to 2.8 μm). It is shown that the time of recording infrared radiation from the inner quartz channel walls in the complicated unsteady flow is not greater than 500 to 700 μs and that of radiation from the surface of the cylinder model in flow is not greater than 40 ms.
期刊介绍:
Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.