Chemical reaction, Dufour and Soret effects on the stability of magnetohydrodynamic blood flow conveying magnetic nanoparticle in presence of thermal radiation: A biomedical application

Ketchate, Cédric Gervais Njingang; Kapen, Pascalin Tiam; Madiebie-Lambou, Inesse; Chégnimonhan, Victorin; Tchinda, René; Tchuen, Ghislain

doi:10.1016/j.heliyon.2023.e12962

Cited by 11 publications

(6 citation statements)

References 43 publications

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“…, 2022). Another effect is the Thermophoresis phenomenon [also known as the Soret effect (Njingang Ketchate et al. , 2023)], which has been studied by many researchers and is claimed to be worth investigating (di Schio et al.…”

Section: Resultsmentioning

confidence: 99%

“…The Brownian motion disrupts the thermal boundary layer, and this phenomenon contributes to enhancing the convective heat transfer performance of the system (Apmann et al, 2022). Another effect is the Thermophoresis phenomenon [also known as the Soret effect (Njingang Ketchate et al, 2023)], which has been studied by many researchers and is claimed to be worth investigating (di Schio et al, 2014;Wang et al, 2021). Thermophoresis can be defined as the time-averaged force formed by the Brownian motion of the NPs in the HTF under the influence of temperature gradient (Michaelides, 2015).…”

Section: Magnetoconvection Characteristicsmentioning

confidence: 99%

“…Another effect is the Thermophoresis phenomenon (also known as the Soret effect [54]), which has been studied by many researchers and is claimed to be worth investigating [55,56]. Thermophoresis can be defined as the time-averaged force formed by the Brownian motion of the NPs in the HTF under the influence of temperature gradient [57].…”

Section: Effect Of Dimple Fin and Ferrofluid On Heat Transfer And Flo...mentioning

confidence: 99%

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Investigation of magneto-convection characteristics in a sudden expanding channel with convex surface geometry under thermally developing flow conditions

Gürsoy,

Pazarlioğlu,

Gürdal

et al. 2024

HFF

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Purpose The purpose of this study is to analyse the magnetic field effect on Fe3O4/H2O Ferrofluid flowing in a sudden expansion tube, which has specific behaviour in terms of rheology, with convex dimple fins. Because the investigation of flow separation is a prominent application in performance, the effect of magnetic field and convex dimple on the thermo-hydraulic performance of sudden expansion tube are examined, in detail. Design/methodology/approach During the solution of the boundary conditions of the sudden expansion tube, finite volume method was used. Analyses have been conducted considering the single-phase solution, steady-state, incompressible fluid and no-slip condition of the wall under forced convection conditions. In the analyses, it has been assumed that the flow was developing thermally and has been fully developed hydrodynamically. Findings The present study focuses on exploring the influence of the magnetic field, nanofluid concentration and convex dimple fins on the thermo-hydraulic performance of sudden expansion tube. The results indicate that the strength of the magnetic field, nanofluid concentration and convex dimple fins have a positive effect on the convective heat transfer in the system. Originality/value The authors conducted numerical studies, determining through a literature search that no one had yet investigated enhancing heat transfer on a sudden expansion tube using combinations of magnetic fields, nanofluids and convex dimple fins. The results of the numerical analyses provide valuable information about the improvement of heat transfer and system performance in electronic device cooling and heat exchangers.

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Section: Resultsmentioning

confidence: 99%

Section: Magnetoconvection Characteristicsmentioning

confidence: 99%

Section: Effect Of Dimple Fin and Ferrofluid On Heat Transfer And Flo...mentioning

confidence: 99%

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Investigation of magneto-convection characteristics in a sudden expanding channel with convex surface geometry under thermally developing flow conditions

Gürsoy,

Pazarlioğlu,

Gürdal

et al. 2024

HFF

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“…Jamaludin et al (2019) investigated the mixed convection of a radiating nanofluid above stretching/shrinking sheet. Other works focused on radiative fluid flows are available in the following literatures (Khan et al , 2017a; Mabood et al , 2021; Iqbal et al , 2018; Ahmed and Xu, 2021; Ketchate et al , 2023).…”

Section: Introductionmentioning

confidence: 99%

Linear stability analysis of MHD mixed convection flow of a radiating nanofluid in porous channel in presence of viscous dissipation

Njingang Ketchate,

Makinde,

Tiam Kapen

et al. 2024

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Purpose This paper aims to investigate the hydrodynamic instability properties of a mixed convection flow of nanofluid in a porous channel. Design/methodology/approach The treated single-phase nanofluid is a suspension consisting of water as the working fluid and alumina as a nanoparticle. The anisotropy of the porous medium and the effects of the inclination of the magnetic field are highlighted. The effects of viscous dissipation and thermal radiation are incorporated into the energy equation. The eigenvalue equation system resulting from the stability analysis is processed numerically by the spectral collocation method. Findings Analysis of the results in terms of growth rate reveals that increasing the volume fraction of nanoparticles increases the critical Reynolds number. Parameters such as the mechanical anisotropy parameter and Richardson number have a destabilizing effect. The Hartmann number, permeability parameter, magnetic field inclination, Prandtl number, wave number and thermal radiation parameter showed a stabilizing effect. The Eckert number has a negligible effect on the growth rate of the disturbances. Originality/value Linear stability analysis of Magnetohydrodynamics (MHD) mixed convection flow of a radiating nanofluid in porous channel in presence of viscous dissipation.

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“…The squeezing effect on a micro-cantilever sensor contained in an MHD channel is theoretically explored in [21] . An investigation with a biomedical orientation led C. G. Njingang Ketchate et al to analyze the hydromagnetic and thermal effects on a fluid model (Casson's fluid) representing blood flowing through a rigid artery with a constant cross-section [22] .…”

Section: Introductionmentioning

confidence: 99%

Electrical performance enhancement of MHD microgenerators through the longitudinal shaping of the cross-section

Trillaud,

Guzmán,

Ramírez-Trocherie

et al. 2023

Heliyon

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Chemical reaction, Dufour and Soret effects on the stability of magnetohydrodynamic blood flow conveying magnetic nanoparticle in presence of thermal radiation: A biomedical application

Cited by 11 publications

References 43 publications

Investigation of magneto-convection characteristics in a sudden expanding channel with convex surface geometry under thermally developing flow conditions

Investigation of magneto-convection characteristics in a sudden expanding channel with convex surface geometry under thermally developing flow conditions

Linear stability analysis of MHD mixed convection flow of a radiating nanofluid in porous channel in presence of viscous dissipation

Electrical performance enhancement of MHD microgenerators through the longitudinal shaping of the cross-section

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