带粘性耗散和异质均质的微极性流体的 MHD 达西-福赫海默流的预测器-校正器 FDM 分析

IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE
D. Thenmozhi, M. Eswara Rao
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引用次数: 0

摘要

这项研究深入探讨了传热系统中的流体动力学,重点是加深我们对传热系统的理解并提高系统效率。该研究采用了一个复杂的数学模型,将微极性流体动力学、微旋转效应、以达西-福克海默模型为特征的层流、惯性效应以及化学反应纳入了一个具有边界层复杂性的传热系统中。数学框架由偏微分方程 (PDE) 组成,研究采用了先进的数值技术,包括 (PC4-FDM) 预测-校正有限差分法和射击法,以求解这些支配方程。通过加入量化网格点和使用四阶有限差分法进行收敛分析,提高了求解的精度。通过对各种参数的仔细研究,得出了有意义的见解。异质参数表明流体浓度呈上升趋势,而同质参数则表明碰撞效应导致流体浓度下降。与粘性耗散有关的埃克特数显示出与流体温度降低和流体速度增加的相关性。微观旋转参数表明流体速度平行增加,流体温度略有下降。值得注意的是,反映惯性效应的达西-福克海默参数显示对流系统中流体温度升高,速度降低。这项研究突出了对工业的影响,强调了对流换热系统在工业化背景下的重要性。研究结果为优化从发电厂到废热回收装置和制药业等各种工业应用中的加热和冷却过程提供了宝贵的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Predictor-corrector FDM analysis of MHD Darcy-Forchheimer flow of a micropolar fluid with viscous dissipation and heterogeneous-homogeneous

This research delves into an intricate exploration of fluid dynamics within heat transfer systems, with a specific focus on enhancing our understanding and improving system efficiency. Employing a sophisticated mathematical model, the study incorporates micropolar fluid dynamics, micro rotational effects, laminar flow characterized by the Darcy-Forchheimer model, inertia effects, and chemical reactions within a heat transfer system featuring boundary layer complexities. The mathematical framework consists of partial differential equations (PDEs), and the study utilizes advanced numerical techniques, including the (PC4-FDM) Predictor-Corrector Finite Difference Method and the shooting method, to solve these governing equations. The inclusion of quantized mesh points and analysis of convergence using 4th order finite difference methods enhances the precision of the obtained solutions. Various parameters are scrutinized to draw meaningful insights. The heterogeneous parameter reveals an increasing trend in fluid concentration, while the homogeneous parameter indicates a collision effect leading to a decrease in fluid concentration. The Eckert number, associated with viscous dissipation, exhibits a correlation with decreased fluid temperature and increased fluid velocity. Micro rotation parameters suggest a parallel increase in fluid velocity and a marginal decrease in fluid temperature. Notably, the Darcy-Forchheimer parameter, reflective of inertial effects, showcases an increase in fluid temperature and decrease in velocity in the convection system. Highlighting the industrial implications, the study underscores the significance of convection heat transfer systems in the context of industrialization. The findings offer valuable insights for optimizing heating and cooling processes in diverse industrial applications, ranging from power plants to waste heat recovery units and pharmaceutical industries.

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来源期刊
CiteScore
7.50
自引率
5.70%
发文量
30
期刊介绍: Propulsion and Power Research is a peer reviewed scientific journal in English established in 2012. The Journals publishes high quality original research articles and general reviews in fundamental research aspects of aeronautics/astronautics propulsion and power engineering, including, but not limited to, system, fluid mechanics, heat transfer, combustion, vibration and acoustics, solid mechanics and dynamics, control and so on. The journal serves as a platform for academic exchange by experts, scholars and researchers in these fields.
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