化学反应、热辐射和热源/散热对流经多孔介质中振荡无限垂直板的非稳态 MHD 自然对流的影响

D. J. Saikia, N. Ahmed
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引用次数: 0

摘要

本研究的主要目的是分析热源/沉降、化学反应和辐射对使用无限摆动垂直板的多孔介质中的非稳定自由对流的影响。利用拉普拉斯变换策略来求解浓度、能量和动量的支配方程。模拟结果表明,化学反应参数会降低一次速度和二次速度。研究还注意到,热量产生(热源)的增加会提高温度场,而热量吸收(散热)的减少则会降低温度场。此外,辐射参数会导致温度和速度模式的下降。推导出了表皮摩擦方程,并以图形的形式展示出来,还提供了三维表面图来描述努塞尔特数和舍伍德数。此外,还采用图表说明各种非尺寸变量对浓度、温度和速度模式的影响。
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Impacts of chemical reaction, thermal radiation, and heat source/sink on unsteady MHD natural convective flow through an oscillatory infinite vertical plate in porous medium
The main objective of this exploration is to analyze the effects of heat source/sink, chemical reactions, and radiation on the unsteady free convective flow through a porous medium using an infinitely oscillating vertical plate. The Laplace transformation tactics is utilized to solve the governing equations for concentration, energy, and momentum. The simulation results demonstrate that the chemical reaction parameter dwindles both primary and secondary velocities. It has been noted that an upsurge in heat generation (heat source) enhances the temperature field, while a decrease in heat absorption (heat sink) leads to a reduction in the temperature field. Furthermore, the radiation parameter causes a drop in both temperature and velocity patterns. The equation for skin friction is derived and presented graphically, and 3-dimensional surface plots are provided to depict the Nusselt number and Sherwood number. Additionally, graphical illustrations are employed to showcase the influence of various non-dimensional variables on concentration, temperature, and velocity patterns.
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来源期刊
International Journal of Applied Mechanics and Engineering
International Journal of Applied Mechanics and Engineering Engineering-Civil and Structural Engineering
CiteScore
1.50
自引率
0.00%
发文量
45
审稿时长
35 weeks
期刊介绍: INTERNATIONAL JOURNAL OF APPLIED MECHANICS AND ENGINEERING is an archival journal which aims to publish high quality original papers. These should encompass the best fundamental and applied science with an emphasis on their application to the highest engineering practice. The scope includes all aspects of science and engineering which have relevance to: biomechanics, elasticity, plasticity, vibrations, mechanics of structures, mechatronics, plates & shells, magnetohydrodynamics, rheology, thermodynamics, tribology, fluid dynamics.
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