Numerical analysis of heat transfer of hybrid nanofluid in a porous sinusoidal channel with magnetic field and an alternating heat flux

Nejat Sheikhpour1, Arash Mirabdolah Lavasani1, Gholamreza Salehi1
1Department of Mechanical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran

Tóm tắt

Recently, a great amount of research was done on wavy conduits due to the importance of heat and flow transfer in wavy channels and conduits, and their special use in various industries. The improvement of heat transfer in these ducts attracted the attention of many researchers, and experimental and numerical studies are devoted. The effect of the presence of a porous medium and magnetic field on forced convection heat transfer and a nanofluid flow in a complex wave-shaped channel with a special boundary condition (Non-uniform with respect to location) was studied for the first time. For this purpose, the heat transfer of a nanofluid in a two-dimensional sinusoidal channel containing a porous medium in the attendance of a magnetic field was analyzed. First, the nanoparticles were optimized using the design of the experiment method, and then modeling was performed using selected optimal particles. To improve heat transfer in a sinusoidal channel, the factors like the injection of optimized nanoparticles, porous medium, and magnetic field usage were used. The equations were discretized using the Fluent software with a finite volume method. The validation of problem outcomes was done using experimental and numerical studies. Porous medium in four different Darcys (10−5, 10−4, 10−3, and 10−2), and applying magnetic fields in four different Hartman (0, 4, 7, and 10) were examined. The results show that the channel wave, and magnetic field intensity improved heat transfer. Furthermore, using a porous medium with high Darcy can increase the Nusselt number. Hence, in the same conditions (Re = 500, Ha = 10) with Darcy number increasing from 10−5 to 10−2, Nu becomes equal to 5.011. This proposed system is an industrial-utility system that can increase heat transfer efficiency.

Từ khóa


Tài liệu tham khảo

10.1016/j.rser.2011.04.025

10.1016/j.ijheatmasstransfer.2015.05.033

10.1016/j.apenergy.2018.02.177

10.1016/j.ijheatmasstransfer.2020.119564

10.1016/j.csite.2022.101796

10.1016/j.partic.2009.01.007

10.1016/j.csite.2021.101737

10.1016/j.powtec.2013.03.047

10.1016/j.cjph.2021.12.016

10.1016/j.cma.2014.09.038

10.1016/j.ijheatmasstransfer.2017.10.113

10.1016/j.ijheatmasstransfer.2019.03.169

10.1016/j.ijheatmasstransfer.2018.11.004

10.1016/j.applthermaleng.2019.113839

10.1016/j.jmmm.2019.01.028

10.1007/s10973-020-09366-8

Han L, 2021, Eng Appl Comput Fluid Mech, 15, 1746

10.1007/s10973-020-10260-6

10.1007/s40430-021-03174-3

Kalpana G, 2022, Eng Sci Technol, 32, 101075

Mohammadi S, 2022, J Model Eng, 20, 155

10.1615/JPorMedia.v18.i4.60

10.1016/j.ijheatmasstransfer.2017.11.117

10.1016/j.ijmecsci.2018.11.019

10.1007/s10973-019-08870-w

10.1016/j.powtec.2021.07.066

10.1016/j.tsep.2021.101010

10.1016/j.powtec.2021.01.077

10.1016/j.solener.2015.10.002

Incropera FP, 2002, Fundamentals of heat and mass transfer, 5

10.1016/j.physe.2016.11.035

10.1016/j.enconman.2014.08.042

10.1016/j.ijheatmasstransfer.2012.05.086

10.1109/TNANO.2002.1005429

10.1063/1.1700493

10.1016/S0017-9310(03)00156-X

Maxwell JC, 1998, A treatise on electricity and magnetism, 2

10.1063/1.5115691

10.1016/j.renene.2017.12.093

10.1016/j.expthermflusci.2011.10.004

10.1016/j.cap.2008.12.047

10.1016/S0017-9310(03)00368-5