基于广义质量和热通量的霍尔效应和离子滑移效应下三维普朗特模型的熵分析贡献

IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE
Sana Akbar , Muhammad Sohail , Syed Tehseen Abbas , Abha Singh
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引用次数: 0

摘要

基于改进的先进热传导和质量扩散模型影响下的三维普朗特流体的熵方法的探究性分析,提供了研究的主要关注点。此外,本文还考虑了霍尔力和滑移力的影响以及辐射和粘滞耗散联合结果下的传热特性。本文还考察了普朗特流体发生过程中,热导率变化和变质量扩散系数对传热和传质的综合影响。流动状态是通过双向可扩展片检查。利用OHAM软件对扩展曲面配置的三维流动进行了数值模拟。利用无因次变量将模拟偏微分方程表示为偏微分方程。模拟结果通过图形验证,通过先前发表的结果通过不同的新出现的约束值获得,并在理想的协议中看到。概述了与本研究相关的不同参数,如布朗和扩散约束、温度和浓度差、Eckert数、霍尔和离子滑移参数、Brinkman数、磁约束、辐射和普朗特流体约束对温度、沿xy轴速度场、浓度和熵产率的影响。注意到沿x轴的速度分布是磁约束、普朗特流体和弹性约束的递增函数,而沿y轴的速度分布则是对比冲击。此外,温度和浓度曲线分别在普朗特数、热和浓度弛豫时间约束下衰减,而在不同的考虑参数下,这两个曲线都增强。随着离子滑移参数的增加,熵值减小,而随着贝让数的增加,熵值增大。熵行为以及各种参数下的贝让数效应以图形形式勾画出来,在考虑约束条件下熵的增强行为被描绘出来,而贝让数在扩散参数和浓度差约束下被增强,而在其他考虑参数下则表现出下降的行为。当前研究的创新之处在于将多种因素整合到普朗特流体模型框架中,使其超越了广泛的传统应用。将普朗特流体模型扩展到三维,可以更全面地展示所考虑的物理系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Contribution of entropy analysis on three-dimensional Prandtl model under Hall and ion slip effects with generalized mass and heat fluxes via OHAM
The major concern of proffered study based on the inquisitive analysis of entropy approach based on 3-D Prandtl fluid influenced by modified advanced heat conduction along with mass diffusion models. Moreover, influence of Hall and also slip forces and heat transmission characteristics are featured under the combined outcomes appertaining to radiations and viscous dissipation are taken into account in this investigation. This article also examined the combined impacts of thermal conductivity change together with variable mass diffusion co-efficient within the heat and mass transport in the occurrence of Prandtl fluid. Flow demeanor is examined across the bidirectional extendable sheet. Numerical simulations based on 3-D flow configured by extending surface are carried out by using OHAM. Simulated PDEs expressed as ODEs with the utilization of dimensionless variables. Simulated outcomes are validated graphically obtained by varying values of emerging constraints through previous published results and seen in desirable agreement. The influence of distinct parameters associated with this current study like Brownian and diffusion constraint, temperature and also concentration difference, Eckert number, Hall as well as ion slip parameters, Brinkman number, magnetic constraint, radiation and Prandtl fluid constraint are sketched for temperature, velocity field along xy-axes, concentration and entropy generation rate. It is noticed that velocity distribution along x-axes is an increasing function of magnetic constraint, Prandtl fluid and also elastic constraint whilst contrast impact is seen along y-axes. Moreover, temperature as well as concentration profile decays for Prandtl number, thermal and also concentration relaxation time constraint respectively whereas both profiles enhanced for distinct considered parameters. Entropy declines for ion-slip parameter whilst enhanced for Bejan number. Entropy behavior as well as Bejan number effect under various parameters is sketched graphically and enhanced behavior is depicted for entropy for considered constraint whilst Bejan number enhanced for diffusion parameter and also concentration difference constraint whereas declined behavior demonstrated for other considered parameters. The innovative component in the current study lies in the integration of multiple factors towards the Prandtl fluid model framework, forcing its boundaries beyond widespread conventional applications. Extending the Prandtl fluid model in 3D allows more comprehensive demonstration of the under consideration physical system.
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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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