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The improved thermal efficiency of Maxwell hybrid nanofluid comprising of graphene oxide plus silver / kerosene oil over stretching sheet
Case Studies in Thermal Engineering ( IF 6.4 ) Pub Date : 2021-07-26 , DOI: 10.1016/j.csite.2021.101257
Farooq Ahmad 1, 2 , Sohaib Abdal 3 , Hela Ayed 1 , Sajjad Hussain 2, 4 , Suleman Salim 5 , A. Othman Almatroud 1
Affiliation  

An analysis for heat transfer enhancement of Graphene oxide (Go)/Kerosene oil and Go + silver (Ag)/Kerosene oil hybrid nanofluid is made theoretically when the fluids flow through a porous medium over a stretching sheet in the presence of an applied magnetic field. The heat energy is augmented with thermal dissipation, heat source, and convective boundary conditions. The mass transpiration at the wall of the sheet is taken into account. The model equations are transmuted to ordinary differential form. The roles of controlling parameters are observed numerically by hiring Runge-Kutta method in Matlab coding. The flow speed becomes faster with Maxwell fluid parameter. The growing strengths of magnetic field and porosity resistance make the flow slower but cause to raise in temperature. Further, the additive volume fraction of silver with Graphene oxide becomes responsible to decelerate the flow and enhance heat transportation. The skin friction factor declines in magnitude against exceeding inputs of magnetic characteristic parameter M and porosity parameter Kp.



中文翻译:

由氧化石墨烯和银/煤油组成的麦克斯韦混合纳米流体在拉伸片上的热效率提高

理论上,当流体在外加磁场存在的情况下流过拉伸片上的多孔介质时,对氧化石墨烯(Go)/煤油油和 Go + 银(Ag)/煤油油混合纳米流体的传热增强进行了分析. 热能随着热耗散、热源和对流边界条件而增加。考虑了板壁处的质量蒸腾作用。模型方程被变换为常微分形式。在Matlab编码中采用Runge-Kutta方法从数值上观察控制参数的作用。流速随着 Maxwell 流体参数变快。磁场强度和孔隙阻力的增强使流动变慢,但导致温度升高。更远,银与氧化石墨烯的添加体积分数变得负责减速流动并增强热传输。超过输入的磁特性参数,皮肤摩擦因数下降M和孔隙度参数K p

更新日期:2021-08-01
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