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首页> 外文期刊>Mathematical models and computer simulations >The Rayleigh—Benard Convection in an Enclosure with Walls of Finite Thickness
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The Rayleigh—Benard Convection in an Enclosure with Walls of Finite Thickness

机译：壁厚有限的外壳中的瑞利-贝纳德对流

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摘要

Mathematical simulation of transient natural convection in an enclosure having walls of a finite thickness at the presence of a heat source located at the bottom of the cavity has been carried out. Special attention was given to the analysis of the Grashov number (Gr) effect, describing the intensity of a heat source; of the transient factor, defining the formation and development of thermodynamic structures; and also of the heat conductivity ratio. Typical distributions of streamlines and temperature fields have been received. Scales of key parameters (the Grashov number, dimensionless time, the heat conductivity ratio), affecting both local characteristics (streamlines, isotherms) and integral characteristics (the average Nusselt number) of the analyzed process, have been determined.
机译：在腔体底部存在热源的情况下，已经进行了具有有限厚度的壁的外壳中的瞬态自然对流的数学模拟。特别关注了对Grashov数（Gr）效应的分析，描述了热源的强度。瞬变因子的定义，定义了热力学结构的形成和发展;以及热导率。已收到流线和温度场的典型分布。确定了影响分析过程的局部特征（流线，等温线）和积分特征（平均努塞尔特数）的关键参数（Grashov数，无量纲时间，热导率）的尺度。

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