{"title":"INVESTIGATION OF THE LAMINAR–TURBULENT TRANSITION WITH THE USE OF A HOT-WIRE FILM SENSOR","authors":"D. A. Bountin, O. I. Vishnyakov, P. A. Polivanov","doi":"10.1134/S0021894424040060","DOIUrl":null,"url":null,"abstract":"<p>The laminar–turbulent transition in transonic flows is studied with the use of hot-wire thin-film surface sensors. For determining fluctuations recorded by the film sensor in the boundary layer, coherence spectra are constructed between the data obtained by the film sensor and by the hot-wire probe, which was used to perform measurements across the entire boundary layer. Based on the analysis of these spectra, it is demonstrated that the most accurate and complete data are obtained by the thin-film sensor in the intermittency region.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"65 4","pages":"629 - 637"},"PeriodicalIF":0.6000,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Mechanics and Technical Physics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0021894424040060","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 laminar–turbulent transition in transonic flows is studied with the use of hot-wire thin-film surface sensors. For determining fluctuations recorded by the film sensor in the boundary layer, coherence spectra are constructed between the data obtained by the film sensor and by the hot-wire probe, which was used to perform measurements across the entire boundary layer. Based on the analysis of these spectra, it is demonstrated that the most accurate and complete data are obtained by the thin-film sensor in the intermittency region.
期刊介绍：
Journal of Applied Mechanics and Technical Physics is a journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The Journal presents papers on fluid mechanics and applied physics. Each issue contains valuable contributions on hypersonic flows; boundary layer theory; turbulence and hydrodynamic stability; free boundary flows; plasma physics; shock waves; explosives and detonation processes; combustion theory; multiphase flows; heat and mass transfer; composite materials and thermal properties of new materials, plasticity, creep, and failure.
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