{"title":"Natural Thermogravitational Convection in a Partially Blocked Square Area Heated from Below: Local and Medium Heat Transfer","authors":"I. A. Ermolaev","doi":"10.1134/s0018151x23050048","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The results of a numerical study of the local and average heat transfer during the natural thermal convection of air in a square-shaped area with two symmetrical horizontal partitions (fins) in the middle of the sides are presented. The region is heated from below by a constant uniform heat flow, the horizontal boundaries and partitions are assumed to be adiabatic, and the upper boundary is assumed to be isothermal. The dependences of the local and average Nusselt numbers on the size of the partitions and the intensity of the convective flow are obtained.</p>","PeriodicalId":13163,"journal":{"name":"High Temperature","volume":"66 1","pages":""},"PeriodicalIF":1.0000,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"High Temperature","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1134/s0018151x23050048","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
The results of a numerical study of the local and average heat transfer during the natural thermal convection of air in a square-shaped area with two symmetrical horizontal partitions (fins) in the middle of the sides are presented. The region is heated from below by a constant uniform heat flow, the horizontal boundaries and partitions are assumed to be adiabatic, and the upper boundary is assumed to be isothermal. The dependences of the local and average Nusselt numbers on the size of the partitions and the intensity of the convective flow are obtained.
期刊介绍：
High Temperature is an international peer reviewed journal that publishes original papers and reviews written by theoretical and experimental researchers. The journal deals with properties and processes in low-temperature plasma; thermophysical properties of substances including pure materials, mixtures and alloys; the properties in the vicinity of the critical point, equations of state; phase equilibrium; heat and mass transfer phenomena, in particular, by forced and free convections; processes of boiling and condensation, radiation, and complex heat transfer; experimental methods and apparatuses; high-temperature facilities for power engineering applications, etc. The journal reflects the current trends in thermophysical research. It presents the results of present-day experimental and theoretical studies in the processes of complex heat transfer, thermal, gas dynamic processes, and processes of heat and mass transfer, as well as the latest advances in the theoretical description of the properties of high-temperature media.
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