Thermal investigation of a moving longitudinal porous fin immersed in trihybrid nanofluid and exposed to a magnetic field: an adomian decomposition sumudu transform method approach

IF 2.3 3区 工程技术 Q2 MECHANICS
P. L. Pavan Kumar, B. J. Gireesha, P. Venkatesh, C. G. Pavithra
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Abstract

The present research investigates the convective and radiative heat transfer characteristics of a moving longitudinal porous fin. The study incorporates the influence of a magnetic field as a driving force for enhancing heat transfer in the system. To optimize heat transfer efficiency, a novel ternary hybrid nanofluid consisting of Ag, MgO and Au nanoparticles dispersed in water is utilized. The analysis employs the Adomian decomposition sumudo transfer method (ADSTM) as the semi-analytical approach, complemented by the numerical method of Runge–Kutta Fehlberg 4–5th (RKF-45) order for comparative analysis. Moreover, the application of fractional order ADSTM is explored to address non-dimensionalized ordinary differential equations (ODEs), and the findings are visually represented through graphical plots, showcasing the impact of various parameters on heat transfer performance and the superiority of the proposed ADSTM technique. The results show that trihybrid nanofluid outperforms both single-component and binary hybrid nanofluids in terms of temperature distribution and thermal efficiency. Importantly, the use of trihybrid nanofluid leads to a significant enhancement in the fin performance. The current findings indicate that a 400% increase in the Peclet number (Pe) leads to a 1.67% rise in the temperature from the base to the tip. Additionally, increasing the Hartmann number (\(H\)) by 400% results in a 16.34% decrease in the temperature from the base to the tip. This study holds significance for various engineering applications, enabling more efficient heat transfer in porous fin systems with potential for future advancements in the field.

Abstract Image

浸入三混合纳米流体并暴露于磁场中的移动纵向多孔鳍片的热学研究:一种阿多米分解苏木杜变换方法
本研究探讨了移动纵向多孔翅片的对流和辐射传热特性。研究将磁场的影响作为增强系统传热的驱动力。为了优化传热效率,采用了一种新型三元混合纳米流体,由分散在水中的银纳米颗粒、氧化镁纳米颗粒和金纳米颗粒组成。分析采用了阿多米分解苏木多传热法(ADSTM)作为半分析方法,并辅以 Runge-Kutta Fehlberg 4-5th (RKF-45) 阶数值方法进行比较分析。此外,还探讨了分数阶 ADSTM 在处理非尺寸化常微分方程 (ODE) 中的应用,并通过图形直观地表示了研究结果,展示了各种参数对传热性能的影响以及所提出的 ADSTM 技术的优越性。结果表明,就温度分布和热效率而言,三元混合纳米流体优于单组分和二元混合纳米流体。重要的是,使用三元混合纳米流体可显著提高翅片性能。目前的研究结果表明,佩克莱特数(Pe)增加 400% 会导致从底部到顶端的温度上升 1.67%。此外,哈特曼数(\(H\))增加 400% 会导致从底部到顶端的温度降低 16.34%。这项研究对各种工程应用都具有重要意义,它使多孔翅片系统的传热效率更高,为该领域未来的发展提供了潜力。
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
Acta Mechanica
Acta Mechanica 物理-力学
CiteScore
4.30
自引率
14.80%
发文量
292
审稿时长
6.9 months
期刊介绍: Since 1965, the international journal Acta Mechanica has been among the leading journals in the field of theoretical and applied mechanics. In addition to the classical fields such as elasticity, plasticity, vibrations, rigid body dynamics, hydrodynamics, and gasdynamics, it also gives special attention to recently developed areas such as non-Newtonian fluid dynamics, micro/nano mechanics, smart materials and structures, and issues at the interface of mechanics and materials. The journal further publishes papers in such related fields as rheology, thermodynamics, and electromagnetic interactions with fluids and solids. In addition, articles in applied mathematics dealing with significant mechanics problems are also welcome.
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