Study the combined effect of electric field and variable viscosity on the stability of dielectric nanofluid (CuO plus water) within a Hele-Shaw cell

被引:2
作者
Kumar, Awanish [1 ,2 ]
Bhadauria, Beer Singh [1 ]
机构
[1] Babasaheb Bhimrao Ambedkar Univ, A Cent Univ, Sch Phys & Decis Sci, Dept Math, Lucknow, Uttar Pradesh, India
[2] Babasaheb Bhimrao Ambedkar Univ, A Cent Univ, Sch Phys & Decis Sci, Dept Math, Lucknow 226025, Uttar Pradesh, India
关键词
Dielectric nanofluid; Hele-Shaw cell; electric field; variable viscosity; linear instability; heat and mass transfer; POROUS-MEDIUM; THERMAL-INSTABILITY; PULSATING THROUGHFLOW; G-JITTER; CONVECTION; LAYER; HEAT; ONSET; FLOW; TRANSPORT;
D O I
10.1177/09544089231160586
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this research article, the combined effect of electric field and variable viscosity on the stability of dielectric nanofluid (CuO + water) within a Hele-Shaw cell is studied. The normal mode technique has been implemented for linear stability analysis and the truncated Fourier series method for nonlinear stability analysis. The effect of the Hele-Shaw number, thermorheological parameter, and alternating current electric Rayleigh number on the onset of convection and heat/mass transfer has been investigated analytically, graphically, and using tables. It is observed that the effect of the thermorheological parameter has a destabilizing effect, and the value of the parameter is always less than 2 for this study. We also found that the Hele-Shaw number has stabilizing effect, and it is always greater or equal to 1.6 for this study. The effect of alternating current electric Rayleigh number is destabilized. We observed that in the whole analysis, numerical results are better than analytical results.
引用
收藏
页码:2017 / 2027
页数:11
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