Heat and mass transfer in thin nanoliquid film over an unsteady stretching sheet in a porous medium with chemical reaction and thermal radiation

被引:0
|
作者
Pal, Dulal [1 ]
Chatterjee, Debranjan [2 ]
Mondal, Surya Kanta [3 ]
机构
[1] Visva Bharati Univ, Inst Sci, Dept Math, Santini Ketan, W Bengal, India
[2] Bahiri BS High Sch, Dept Math, Bolpur, India
[3] Abhedananda Mahavidyalaya, Dept Math, Sainthia, India
关键词
Porous medium; chemical reaction; thermal radiation; nanofluid; stretching sheet; thin liquid film; LIQUID-FILM; VISCOUS DISSIPATION; FLOW; NANOFLUID;
D O I
10.1080/01430750.2019.1676308
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
In this paper, an unsteady two-dimensional nanofluid flow past a stretching sheet in the presence of a chemical reaction and thermal radiation embedded in a porous medium has been investigated. The boundary layer equations are transformed into ordinary differential equations with the help of similarity transformed and then these equations are solved numerically by standard techniques. The velocity, temperature gradient and nanoparticle concentration gradient profiles are presented graphically for various physical parameters such as thermal radiation?and porous parameters, Prandtl number, Eckert number, chemical reaction and Brownian motion parameters. It is found that the temperature gradient profiles increase with an?increase in the thermal radiation parameter in the range , whereas opposite effects are observed in the range . Also, it is seen that the velocity profile decreases in the presence of a porous medium.
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页码:845 / 852
页数:8
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