Influences of Marangoni convection and variable magnetic field on hybrid nanofluid thin-film flow past a stretching surface

被引:7
|
作者
Khan, Noor Wali [1 ]
Khan, Arshad [2 ]
Usman, Muhammad [1 ]
Gul, Taza [1 ,3 ]
Mouldi, Abir [4 ]
Brahmia, Ameni [5 ]
机构
[1] City Univ Sci & IT, Dept Math, Peshawar 25000, Pakistan
[2] Natl Univ Sci & Technol NUST, Coll Aeronaut Engn, Sect H-12, Islamabad 44000, Pakistan
[3] Govt Super Sci Coll, Higher Educ Arch & Lib Dept KP, Peshawar, Pakistan
[4] King Khalid Univ, Coll Engn, Dept Ind Engn, Abha 61421, Saudi Arabia
[5] King Khalid Univ, Coll Sci, Chem Dept, Abha 61413, Saudi Arabia
关键词
thin-film flow; hybrid nanofluid; viscous dissipation; stretching surface; homotopy analysis method; CHANGE HEAT-TRANSFER; LIQUID-FILM; TRANSPORT; SHEET; FLUX; MHD;
D O I
10.1088/1674-1056/ac3a5d
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Investigations on thin-film flow play a vital role in the field of optoelectronics and magnetic devices. Thin films are reasonably hard and thermally stable but quite fragile. The thermal stability of a thin film can be further improved by incorporating the effects of nanoparticles. In the current work, a stretchable surface is considered upon which hybrid nanofluid thin-film flow is taken into account. The idea of augmenting heat transmission by making use of a hybrid nanofluid is a focus of the current work. The flow is affected by variations in the viscous forces, along with viscous dissipation effects and Marangoni convection. A time-constrained magnetic field is applied in the normal direction to the flow system. The equations governing the flow system are shifted to a non-dimensional form by applying similarity variables. The homotopy analysis method is employed to find the solution to the resultant equations. It is noticed in this study that the flow characteristics decline with augmentation of magnetic, viscosity and unsteadiness parameters while they increase with enhanced values of thin-film parameters. Thermal characteristics are supported by increasing values of the Eckert number and the unsteadiness parameter and opposed by the viscosity parameter and Prandtl number. The numerical impact of different emerging parameters upon skin friction and the Nusselt number is calculated in tabular form. A comparison of current work with established results is carried out, with good agreement.
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页数:8
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