热电阻率对卡森三元纳米流体化学反应磁流体动力挤压流影响的数值分析

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-04-12 DOI:10.1016/j.csite.2025.106110

Nur Azlina Mat Noor , Nur Adilah Abd Jalil , Suguna a p Olakanathan

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引用次数: 0

摘要

采用辐射传热和化学反应研究了卡森三元纳米流体在可渗透介质中通过挤压两表面的磁流传质传热。将石墨烯Gr、氧化石墨烯GO和银银这三种纳米颗粒混合在卡森液中，以海藻酸钠（C6H9NaO7）为基液溶解。采用相似变量对控制方程进行离散化，并采用凯勒盒法求解。这些产出经过验证，并与现有产出非常一致。考察了MHD、挤压、渗透介质、纳米颗粒体积分数、热辐射和化学反应对流体物理行为的影响。图形输出描述了流体流动中的温度、浓度、质量和传热速率，与二元和单纳米流体相比，三元纳米流体的壁面剪切应力最高。此外，挤压板时流体流量增加，而通道中心的流体流量减少，从而增强了Ha、Da和ϕ2。传热速率和温度的减速表现为随着ϕ2和Rd的升高而减小。建设性化学反应的传质速率减小，浓度升高，而破坏性化学反应的传质速率则相反。

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查看原文本刊更多论文

Numerical analysis of thermal resistivity impact on magnetohydrodynamic squeezing flow of Casson ternary nanofluid with chemical reaction

The investigation of mass and heat transfer of hydromagnetic flow on Casson ternary nanofluid across squeeze two surfaces in a permeable medium with radiative heat transfer and chemical reaction are studied. The mixture of three type of nanoparticles, graphene Gr, graphene oxide GO and silver Ag in the Casson fluid is dissolved in sodium alginate

(C_{6} H_{9} N a O_{7})

as the base fluid. Similarity variables is implemented to discretize the governing equations and solved by Keller-box techniques. The outputs are validated and presented in excellent agreement with the existing outputs. The influences of MHD, squeezing, permeable medium, nanoparticles volume fraction, heat radiation and chemical reaction on physical behavior of the flow are examined. The graphical outputs depict the temperature, concentration, rate of mass and thermal transfer, and wall shear stress in the fluid flow is the highest for ternary nanofluids compared to binary and mono nanofluids. Moreover, the fluid flow increases when squeezing the plates, while it decreases in the centre of channel for enhancing

H a

D a

and

ϕ_{2}

. The deceleration of heat transfer rate and temperature shown with rising of

ϕ_{2}

and

R_{d}

. The mass transfer rate declines and concentration elevates for constructive chemical reaction, while contradict results is presented for destructive chemical reaction.

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.