V. V. Lukashov, V. V. Lemanov, A. V. Tupikin, V. A. Fedorenko, K. A. Sharov
{"title":"Hydrodynamics and heat transfer of a laminar jet impinging on a catalytic surface","authors":"V. V. Lukashov, V. V. Lemanov, A. V. Tupikin, V. A. Fedorenko, K. A. Sharov","doi":"10.1134/S0869864325020052","DOIUrl":null,"url":null,"abstract":"<div><p>The paper presents the results of a study on the effect of catalytic hydrogen oxidation on heat transfer in an impinging jet under chemical activity on the sample surface. It is shown that with an increase in the percentage of hydrogen in the mixture with air, not only an increase in the heat transfer intensity is observed, but also the reaction zone expansion. Additionally, it is also noted that in the case of a chemically active jet, temperature pulsations (approximately 6 %), associated with the reactions of hydrogen catalytic oxidation, occur on the surface. At that, the form of generalized distribution of the temperature function along the surface radius remains almost the same for all cases involving heterogeneous chemical reactions. The exception is the case with 2 % molar hydrogen content in the jet, if there are regions with heat release from reactions lower than the convective heat transfer at a non-reacting flow.</p></div>","PeriodicalId":800,"journal":{"name":"Thermophysics and Aeromechanics","volume":"32 2","pages":"315 - 320"},"PeriodicalIF":0.6000,"publicationDate":"2026-02-13","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/S0869864325020052","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 presents the results of a study on the effect of catalytic hydrogen oxidation on heat transfer in an impinging jet under chemical activity on the sample surface. It is shown that with an increase in the percentage of hydrogen in the mixture with air, not only an increase in the heat transfer intensity is observed, but also the reaction zone expansion. Additionally, it is also noted that in the case of a chemically active jet, temperature pulsations (approximately 6 %), associated with the reactions of hydrogen catalytic oxidation, occur on the surface. At that, the form of generalized distribution of the temperature function along the surface radius remains almost the same for all cases involving heterogeneous chemical reactions. The exception is the case with 2 % molar hydrogen content in the jet, if there are regions with heat release from reactions lower than the convective heat transfer at a non-reacting flow.
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.
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