MHD mixed convection of $$ {\text{Al}}_{2} {\text{O}}_{3}  $$–Cu–water hybrid nanofluid in a wavy channel with incorporated fixed cylinder

Hussain, Shafqat; Jamal, Muhammad Asghar; Maatki, Chemseddine; Ghachem, Kaouther; Kolsi, Lioua

doi:10.1007/s10973-020-10260-6

Cited by 25 publications

(9 citation statements)

References 46 publications

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“…where V T and V V are The total volume of the PM and The volume of the cavity in the porous medium, respectively. Moreover, Ha number is used to express the intensity of an MF, which is defined as equation (18). 8 Ha = B o L σ nf μ nf (18) where B o and L are the MF strength and the length of channel, respectively.…”

Section: Governing Relations and Boundary Conditionsmentioning

confidence: 99%

“…Han et al 17 numerically studied forced convection HT and entropy generation in a microchannel in the presence of an MF and concluded that Ha number improved the HT rate. Hussain et al 18 studied the convective HT in the presence of MF with hybrid NF (Al 2 O 3 -Cu-water) in a wavy channel. In their work, the effect of basic elements, such as Reynolds number, VF of NPs, and wave amplitude on HT was studied.…”

Section: Introductionmentioning

confidence: 99%

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

Sheikhpour

Lavasani

Salehi

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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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.

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Section: Governing Relations and Boundary Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Sheikhpour

Lavasani

Salehi

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…Waini et al (2020) investigated thermal performance towards a permeable moving wedge while taking magnetic parameter execution into consideration in hybrid nanofluid. The influence of magnetohydrodynamics (MHD) stagnation point flow on a permeable moving surface with buoyancy effect is addressed by Hussain et al (2021); Zainal et al (2020a, 2021a); and Jamaludin et al (2020). Some available reviews focused on the nanofluid and hybrid nanofluid considering various effects can be assessed through Uddin et al (2015), Ghalambaz et al (2019); Waini et al (2021a); Zainal et al (2021b); Roşca et al (2021a, 2021b, 2021c); and Khan et al (2021).…”

Section: Introductionmentioning

confidence: 99%

Mixed bioconvection stagnation point flow towards a vertical plate in alumina-copper/water

Zainal

Naganthran

Pop

2022

HFF

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Purpose According to the previous research, bioconvection has been recognized as an important mechanism in current engineering and environmental systems. For example, researchers exploit this mechanism in modern green bioengineering to develop environmentally friendly fuels, fuel cells and photosynthetic microorganisms. This study aims to analyse how this type of convection affects the flow behaviour and heat transfer performance of mixed convection stagnation point flow in alumina-copper/water hybrid nanofluid. Also, the impact of a modified magnetic field on the boundary layer flow is considered. Design/methodology/approach By applying appropriate transformations, the multivariable differential equations are transformed into a specific sort of ordinary differential equations. Using the bvp4c procedure, the adjusted mathematical model is revealed. Once sufficient assumptions are provided, multiple solutions are able to be produced. Findings The skin friction coefficient is declined when the nanoparticle concentration is increased in the opposing flow. In contrast, the inclusion of aligned angles displays an upward trend in heat transfer performance. The presence of several solutions is established, which simply leads to a stability analysis, hence verifies the viability of the initial solution. Originality/value The current findings are unique and novel for the investigation of mixed bioconvection flow towards a vertical flat plate in a base fluid with the presence of hybrid nanoparticles.

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“…Several research investigations have been reported in literature on MHD flow through wavy channels of different geometry with an objective to achieve an enhanced heat transfer. [40][41][42][43][44][45][46][47][48] Mayeli et al 46,47 numerically studied the effect of applied magnetic field on the forced convective flow of Al 2 O 3 -water nanofluid through sinusoidal and ribbed wavy channels and reported that with the change in Hartmann number from 0 to 40 the value of the average Nusselt number enhances up to 34.4% and 41% for ribbed and sinusoidal wavy channels, respectively. Mehta and Pati 11 explored the MHD heat transport characteristics for flow of Al 2 O 3 -water nanofluid through an asymmetric wavy channel for Reynolds number in the range of 10 to 500.…”

Section: Introductionmentioning

confidence: 99%

Analysis of thermo-hydraulic characteristics for flow of MWCNT-Fe₃O₄/H₂O hybrid nanofluid through a wavy channel under magnetic field

Mehta

Pati

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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We investigate computationally the transport characteristics for flow of MWCNT-Fe3O4/H2O hybrid nanofluid through a wavy channel under the influence of an externally applied magnetic field. The flow and temperature fields are analyzed in terms of streamlines, isotherms, average Nusselt number ([Formula: see text]), magnetic enhancement ratio ( ERm), and magnetic performance factor ( PFm) for the following range of parameters: 100[Formula: see text]Re[Formula: see text]500, 0[Formula: see text] Ha[Formula: see text]10, and 0% [Formula: see text]0.3%. The strength of the reverse flow in the recirculatory zones decreases with Ha, and beyond a critical Ha, the flow becomes attached even in the diverging part of the channel. The hot spot intensity near the walls decreases and hence, the value of [Formula: see text] increases with the increase in volume fraction of nano-particles and Ha. The rate of increment of [Formula: see text] is steeper at lower values of Ha. It further reveals that PFm monotonically decreases with Ha for lower Re ( = 100). For higher values of Re, PFm decreases with Ha for its lower and higher values, while for the intermediate range of Ha, PFm increases with Ha.

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MHD mixed convection of $$ {\text{Al}}_{2} {\text{O}}_{3} $$–Cu–water hybrid nanofluid in a wavy channel with incorporated fixed cylinder

Cited by 25 publications

References 46 publications

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

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

Mixed bioconvection stagnation point flow towards a vertical plate in alumina-copper/water

Analysis of thermo-hydraulic characteristics for flow of MWCNT-Fe₃O₄/H₂O hybrid nanofluid through a wavy channel under magnetic field

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MHD mixed convection of $$ {\text{Al}}_{2} {\text{O}}_{3} $$–Cu–water hybrid nanofluid in a wavy channel with incorporated fixed cylinder

Cited by 25 publications

References 46 publications

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

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

Mixed bioconvection stagnation point flow towards a vertical plate in alumina-copper/water

Analysis of thermo-hydraulic characteristics for flow of MWCNT-Fe3O4/H2O hybrid nanofluid through a wavy channel under magnetic field

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Analysis of thermo-hydraulic characteristics for flow of MWCNT-Fe₃O₄/H₂O hybrid nanofluid through a wavy channel under magnetic field