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Magneto hydrodynamic and dissipated nanofluid flow over an unsteady turning disk
Advances in Mechanical Engineering ( IF 1.9 ) Pub Date : 2021-07-20 , DOI: 10.1177/16878140211034392
Taza Gul 1, 2 , Muhammad Usman 1, 2 , Imran Khan 3 , Saleem Nasir 4 , Anwar Saeed 4 , Amir Khan 5 , Muhammad Ishaq 1
Affiliation  

A modern development in the field of fluid dynamics emphasizes on nanofluids which maintain remarkable thermal conductivity properties and intensify the transport features of heat in fluids. The present communication provides an innovative idea of MHD (magneto-hydrodynamics) unsteady, incompressible nanoliquid flow due to the stretching rotating disk with the effect of Joule heating and dissipation. The engine oil is used as a carrier fluid for an immersed rotating disk. A special type of nanoliquid, which consists of cylindrical shape nano materials CNTs (Carbon Nanotubes), is being taken into an account. The CNTs are assembled of both single and multi-walled carbon nanotubes. Some other factors such as the effect of joule heating and viscus dispassion are also used in this investigation. The foremost set of PDEs (Partial Differential Equations) of our model is reformed to the dimensionless form via invoking suitable variables. The resultant set of equations is sketched out through RK-4 method. Furthermore, the velocity profile and energy distribution versus dimensionless flow factors have been sketched and discussed. Also, the outcomes of important engineering curiosity like Nusselt number and skin friction are depicted and interpreted by taking various model factors. Radial and transverse velocity fields, declines via M (magnetic factor), while the temperature field enhances. Furthermore, the larger estimation of ϕandω leads to enhance the velocity field while higher estimation of S reducing the velocity and temperature fields. The current work has an extensive verity use such as nano-mechanics and electro-magnetic micro pumps.



中文翻译:

磁流体动力学和耗散纳米流体在不稳定转动盘上的流动

流体动力学领域的现代发展强调纳米流体,它保持显着的导热性能并加强流体中热量的传输特性。目前的通讯提供了一个创新的想法,即 MHD(磁流体动力学)不稳定的、不可压缩的纳米液体流动,这是由于旋转盘在焦耳加热和耗散的影响下拉伸的。发动机油用作浸入式旋转盘的载液。正在考虑一种特殊类型的纳米液体,它由圆柱形纳米材料 CNT(碳纳米管)组成。碳纳米管由单壁和多壁碳纳米管组装而成。本研究还使用了一些其他因素,例如焦耳加热和内脏钝化的影响。通过调用合适的变量,我们模型的最重要的一组 PDE(偏微分方程)被改造成无量纲形式。所得方程组通过 RK-4 方法勾勒出来。此外,速度剖面和能量分布与无量纲流动因素的关系已被勾画和讨论。此外,通过采用各种模型因素来描述和解释重要的工程好奇心的结果,如努塞尔数和皮肤摩擦。径向和横向速度场,下降通过 通过采用各种模型因素来描述和解释重要的工程好奇心的结果,如努塞尔数和皮肤摩擦。径向和横向速度场,下降通过 通过采用各种模型因素来描述和解释重要的工程好奇心的结果,如努塞尔数和皮肤摩擦。径向和横向速度场,下降通过(磁因子),而温度场增强。此外,更大的估计φω 导致增强速度场,同时更高的估计 减小速度场和温度场。目前的工作具有广泛的真实用途,如纳米力学和电磁微泵。

更新日期:2021-07-21
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