多孔介质中温度可变、质量指数扩散的加速无限垂直板上非稳态流过时的热分层和质量分层效应

IF 1 Q3 PHYSICS, MULTIDISCIPLINARY
Himangshu Kumar, R. Deka
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引用次数: 0

摘要

本研究探讨了当温度变化且多孔介质中存在指数质量扩散时,热分层和质量分层如何影响经过无限快速运动的垂直板的非稳态流动。通过应用拉普拉斯变换方法,我们确定了单元普朗特数和施密特数情况下系统方程的解。为了便于讨论不同变量的成因,我们提供了浓度、温度和速度剖面以及努塞尔特数、舍伍德数和皮肤摩擦力的图表表示。为了了解热分层和质量分层对流体流动的影响,我们用图表比较了经典解法(无分层流体)和主要解法(有分层流体)。两种分层的综合影响使流体更快地接近稳态。这些结果有助于热交换设计和其他工程应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Thermal and Mass Stratification Effects on Unsteady Flow Past an Accelerated Infinite Vertical Plate with Variable Temperature and Exponential Mass Diffusion in Porous Medium
This study looks at how thermal and mass stratification affect the unsteady flow past an infinitely fast-moving vertical plate when the temperature is changing and there is exponential mass diffusion in a porous medium. By applying the Laplace transformation method, we determine the solutions to the equations that govern the system for the case of unitary Prandtl and Schmidt numbers. Graphical representations of the concentration, temperature, and velocity profiles, as well as the Nusselt Number, Sherwood number, and the Skin friction are provided to facilitate discussion of the cause of the different variables. To see the effects of thermal and mass stratification on the fluid flow, we compare the classical solution (Fluid with out stratification) with the primary solution (Fluid with the stratification) by using graph. The combined effects of the two stratification lead to a quicker approach to steady states. The outcomes can be helpful for heat exchange design and other engineering applications.
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来源期刊
East European Journal of Physics
East European Journal of Physics PHYSICS, MULTIDISCIPLINARY-
CiteScore
1.10
自引率
25.00%
发文量
58
审稿时长
8 weeks
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