带有霍尔电流和二次浮力的粘性杰弗里流体流经达尔西亚介质的动力学。

IF 3 3区 生物学 Q2 BIOCHEMICAL RESEARCH METHODS
Mojeed T Akolade, Samson A Agunbiade, Timothy L Oyekunle, Peter B Malgwi
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引用次数: 0

摘要

这篇论文以现有研究为基础,研究了杰弗里流体中霍尔电流在辐射热、对流边界条件、焦耳加热和达西耗散条件下的动力学。霍尔电流是涉及强磁场的工程应用中的一个重要现象,它突出了电磁力在检查血液流速、确定电荷漂移速度、密度和运动方面的影响,并被用于发电机和高压变压器中。该分析包含耗散热和热辐射热,并利用多孔介质电阻产生的霍尔电流和焦耳热效应,推导出控制动态系统的偏微分方程。然后通过相似变量将这些方程简化为常微分方程。伽勒金加权残差法(GWRM)用于研究霍尔电流和二次热浮力的动力学,揭示了多孔介质中杰弗里流体对流的热特性和流体力学。分析表明,在存在外加磁场的情况下,霍尔电流对流动和热动力学的贡献会诱发磁力,从而增强流体运动并对热能模式产生负面影响。由于浮力电流的增加,耗散热量的施加在物理上增加了流体温度。热辐射、霍尔电流、粘性耗散和焦耳热的出现可以有效优化热传导率和剪切应力。此外,表格结果表明,杰弗里流体的弛豫时间越长,摩擦系数和传热速率就越低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamics of Viscous Jeffrey Fluid Flow Through Darcian Medium With Hall Current and Quadratic Buoyancy.

This contribution builds on existing studies by investigating the dynamics of Hall current in Jeffery fluid under radiative heat, convective boundary conditions, Joule heating, and Darcy dissipation. Hall current, an important phenomenon in engineering applications involving strong magnetic fields, highlights the impact of electromagnetic force in examining blood flow rate, determining charge drift velocity, density, and movement, and is used in power generators and high-voltage transformers. This analysis incorporates dissipative and thermal radiative heat and employs the effects of Hall current and Joule heating, resulting from porous medium resistance, to derive the partial differential equations governing the dynamic systems. These equations are then reduced to ordinary differential equations (ODEs) through similarity variables. The Galerkin weighted residual method (GWRM) is employed to examine the dynamics of Hall current and quadratic thermal buoyancy, shedding light on the thermal properties and hydrodynamics of Jeffrey fluid convection within a porous medium. The analysis reveals that in the presence of an applied magnetic field, the contribution of Hall current to flow and heat dynamics induces a magnetic force that enhances fluid motion and negatively impacts heat energy patterns. The imposition of dissipative heat physically increases the fluid temperature, owing to an increase in buoyancy current. The occurrence of thermal radiation, Hall current, viscous dissipation, and Joule heating can efficiently optimize the rate of heat transfer and shear stress. Moreover, the tabular results indicate that Jeffrey fluid, exhibiting higher relaxation time, will experience a lower friction coefficient and heat transfer rate.

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来源期刊
ELECTROPHORESIS
ELECTROPHORESIS 生物-分析化学
CiteScore
6.30
自引率
13.80%
发文量
244
审稿时长
1.9 months
期刊介绍: ELECTROPHORESIS is an international journal that publishes original manuscripts on all aspects of electrophoresis, and liquid phase separations (e.g., HPLC, micro- and nano-LC, UHPLC, micro- and nano-fluidics, liquid-phase micro-extractions, etc.). Topics include new or improved analytical and preparative methods, sample preparation, development of theory, and innovative applications of electrophoretic and liquid phase separations methods in the study of nucleic acids, proteins, carbohydrates natural products, pharmaceuticals, food analysis, environmental species and other compounds of importance to the life sciences. Papers in the areas of microfluidics and proteomics, which are not limited to electrophoresis-based methods, will also be accepted for publication. Contributions focused on hyphenated and omics techniques are also of interest. Proteomics is within the scope, if related to its fundamentals and new technical approaches. Proteomics applications are only considered in particular cases. Papers describing the application of standard electrophoretic methods will not be considered. Papers on nanoanalysis intended for publication in ELECTROPHORESIS should focus on one or more of the following topics: • Nanoscale electrokinetics and phenomena related to electric double layer and/or confinement in nano-sized geometry • Single cell and subcellular analysis • Nanosensors and ultrasensitive detection aspects (e.g., involving quantum dots, "nanoelectrodes" or nanospray MS) • Nanoscale/nanopore DNA sequencing (next generation sequencing) • Micro- and nanoscale sample preparation • Nanoparticles and cells analyses by dielectrophoresis • Separation-based analysis using nanoparticles, nanotubes and nanowires.
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