Natural Thermogravitational Convection in a Partially Blocked Square Area Heated from Below: Local and Medium Heat Transfer

IF 1 4区物理与天体物理 Q4 PHYSICS, APPLIED

High Temperature Pub Date : 2024-03-21 DOI:10.1134/s0018151x23050048

I. A. Ermolaev

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.

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从下方加热的部分封闭方形区域中的自然热重对流：局部和介质传热

摘要本文介绍了在一个两侧中间有两个对称水平隔板（翅片）的正方形区域中，空气自然热对流过程中的局部和平均传热的数值研究结果。该区域由恒定的均匀热流自下而上加热，水平边界和隔板假定为绝热，上边界假定为等温。得出了局部和平均努塞尔特数对分区大小和对流强度的依赖关系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Temperature 物理-物理：应用

CiteScore

1.50

自引率

40.00%

发文量

审稿时长

4-8 weeks

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.