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Impact of magnetic dipole on ferromagnetic hybrid nanofluid flow over a stretching cylinder
Physica Scripta ( IF 2.6 ) Pub Date : 2021-02-13 , DOI: 10.1088/1402-4896/abe324
R Naveen Kumar 1 , R J Punith Gowda 1 , Abdullah M Abusorrah 2 , Y M Mahrous 3 , Nidal H Abu-Hamdeh 4 , Alibek Issakhov 5, 6 , Mohammad Rahimi-Gorji 7 , B C Prasannakumara 1
Affiliation  

Nanofluids manage heat in the internal combustion of the engines or machines by avoiding corrosion in the cooling system as well as assist in eradicating the engine’s waste heat. Hence, they are used as coolants in many automotive industries. Inspired by these applications, the thermal and mass transfer in hybrid nanoliquid flow over a stretching cylinder on taking account of magnetic dipole is studied in this investigation. Here, we have done a comparative study on flow of two diverse combinations of hybrid nanofluids, namely ${{\rm{MnZnFe}}}_{2}{{\rm{O}}}_{4}-{{\rm{NiZnFe}}}_{2}{{\rm{O}}}_{4}-{{\rm{C}}}_{10}{{\rm{H}}}_{22}$ and ${\rm{Cu}}-{{\rm{Al}}}_{2}{{\rm{O}}}_{3}-{{\rm{C}}}_{10}{{\rm{H}}}_{22}.\,$ The modelled equation for the assumed flow is converted to ODEs by opting appropriate similarity variables. These ODEs are solved by utilizing the Runge–Kutta Fehlberg fourth-fifth order (RKF-45) method by adopting shooting technique. Physical clarification of relevant parameters for non-dimensional discrete flow fields are discussed briefly by using graphs. Also, skin friction, Sherwood and Nusselt numbers are deliberated with the assistance of graphs. Results reveal that, the upsurge in ferromagnetic interaction parameter declines the velocity in both fluids but converse trend is detected in temperature and concentration of the liquids. The heightening of ferromagnetic interaction parameter declines the rate of heat and mass transfer.



中文翻译:

磁偶极子对拉伸圆柱体上铁磁杂化纳米流体流动的影响

纳米流体通过避免冷却系统中的腐蚀来管理发动机或机器内燃中的热量,并有助于消除发动机的废热。因此,它们在许多汽车工业中用作冷却剂。受这些应用的启发,在这项研究中研究了考虑到磁偶极子的混合纳米液体在拉伸圆柱体上的传热和传质。在这里,我们已经做的混合纳米流体,即两种不同的组合流动的比较研究$ {{\ rm {MnZnFe}} __ 2 {{\ rm {O}}} _ {4}-{{\ rm {NiZnFe}}} _ {2} {{\ rm {O}}} _ {4}-{{\ rm {C}}} _ {10} {{\ rm {H}}} _ {22} $$ {\ rm {Cu}}-{{\ rm {Al}}} _ {2} {{\ rm {O}}} _ {3}-{{\ rm {C}}} _ {10} { {\ rm {H}}} _ {22}。\,$通过选择适当的相似性变量,可以将假定流量的建模方程式转换为ODE。通过采用射击技术,利用Runge-Kutta Fehlberg四阶五阶(RKF-45)方法解决了这些ODE。使用图形简要讨论了无量纲离散流场的相关参数的物理澄清。另外,借助图表来研究皮肤摩擦,Sherwood和Nusselt数。结果表明,铁磁相互作用参数的激增降低了两种流体的速度,但在温度和液体浓度中却发现了相反的趋势。铁磁相互作用参数的升高降低了传热和传质的速率。

更新日期:2021-02-13
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