Numerically simulated behavior of radiative Fe3O4 and multi-walled carbon nanotube hybrid nanoparticle flow in presence of Lorentz force

被引:11
作者
Shehzad, S. A. [1 ]
Sheikholeslami, M. [2 ,3 ]
Ambreen, T. [4 ]
Saleem, A. [4 ]
Shafee, A. [5 ]
机构
[1] COMSATS Univ Islamabad, Dept Math, Sahiwal 57000, Pakistan
[2] Babol Noshirvani Univ Technol, Renewable Energy Syst & Nanofluid Applicat Heat T, Babol 4714871167, Iran
[3] Babol Noshirvani Univ Technol, Dept Mech Engn, Babol 4714871167, Iran
[4] Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea
[5] Duy Tan Univ, Inst Res & Dev, Da Nang 550000, Vietnam
关键词
free convection; hybrid nanoparticle; Darcy porous space; Hartmann number; radiation; O361; 76Sxx; 76Bxx;
D O I
10.1007/s10483-021-2693-9
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Free convection in hybrid nanomaterial-saturated permeable media is crucial in various engineering applications. The present study aims to investigate the free convection of an aqueous-based hybrid nanomaterial through a zone under the combined effect of the Lorentz force and radiation. The natural convection of the hybrid nanomaterial is modeled by implementing a control volume finite element method (CVFEM)-based code, whereas Darcy assumptions are used to model the porosity terms in the momentum buoyancy equation involving the average Nusselt number Nu(ave), flow streamlines, and isotherm profiles. A formula for estimating Nu(ave) is proposed. The results show that the magnetic force retards the flow, and the fluid tends to attract the magnetic field source. Nu(ave) is directly correlated with the Rayleigh number and radiation; however, it is indirectly dependent on the Hartmann number. Conduction is the dominant mode at larger Darcy and Hartmann numbers.
引用
收藏
页码:347 / 356
页数:10
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