Implementation of hybrid nanofluid flowing in dimpled tube subjected to magnetic field

Gürdal, Mehmet; Pazarlıoğlu, Hayati Kadir; Tekir, Mutlu; Altunay, Fethi Murat; Arslan, Kamil; Gedik, Engin

doi:10.1016/j.icheatmasstransfer.2022.106032

Cited by 35 publications

(10 citation statements)

References 60 publications

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“…The fractional calculus was reused by Khazayinejad and Nourazar 38 to describe a 2D-fractional HT analysis of HNF in conjunction with a leaky plate and MHD. The tri-HNF curved in a depressed tube endangering the MHD was compressed by Gürdal et al 39 . A study on a quick and sensitive MHD device based on a photonic quartz grit with magnetic liquid penetrated nanoholes was reported by Azad et al 40 .…”

Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Second-order convergence analysis for Hall effect and electromagnetic force on ternary nanofluid flowing via rotating disk

Shahzad

Jamshed

Din

et al. 2022

Sci Rep

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The purpose of this research was to estimate the thermal characteristics of tri-HNFs by investigating the impacts of ternary nanoparticles on heat transfer (HT) and fluid flow. The employment of flow-describing equations in the presence of thermal radiation, heat dissipation, and Hall current has been examined. Aluminum oxide (Al2O3), copper oxide (CuO), silver (Ag), and water (H2O) nanomolecules make up the ternary HNFs under study. The physical situation was modelled using boundary layer analysis, which generates partial differential equations for a variety of essential physical factors (PDEs). Assuming that a spinning disk is what causes the flow; the rheology of the flow is enlarged and calculated in a rotating frame. Before determining the solution, the produced PDEs were transformed into matching ODEs using the second order convergent technique (SOCT) also known as Keller Box method. Due to an increase in the implicated influencing elements, several significant physical effects have been observed and documented. For resembling the resolution of nonlinear system issues come across in rolling fluid and other computational physics fields.

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Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Second-order convergence analysis for Hall effect and electromagnetic force on ternary nanofluid flowing via rotating disk

Shahzad

Jamshed

Din

et al. 2022

Sci Rep

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“…On the other hand, the deviation of ff is detected by 4.12% compared with exp. data of Gürdal et al [41]. As a result, it can be decided that numerical results are in harmony with experimental and correlation results.…”

Section: Model Validationsupporting

confidence: 57%

“…For validation, both experimental and well-known correlations in the literature were used. While the analysis results were in average ±2.15% error margin of Gürdal et al [41] experimental study, ±4.78% error margin of Shah-London [42] correlation in terms of Nu. On the other hand, the deviation of ff is detected by 4.12% compared with exp.…”

Section: Model Validationmentioning

confidence: 72%

Thermo-hydraulic Performance Analysis of Al2O3/water Nanofluid Flow in a Tube Extended by Twisted Tape

Gürsoy¹,

Çalar²,

Dağdeviren³

et al. 2022

tfeme journal

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In this numerical study, heat transfer characteristics and hydrodynamical analysis have been performed for a circular tube inserted with twisted tape, which has different twisted pitch ratios (TPR=0, 50, 100, and 200). As a working fluid Al2O3/water nanofluid is used which has different volumetric concentrations (0.0≤φ≤3.0 vol. %). The numerical analysis has been carried out under the constant wall heat flux (q′′) of 4357 W/m2 for laminar flow ranging the Reynolds (Re) number from 1000 to 2000. According to numerical results, the highest average Nusselt number (Nu) and average Darcy friction factor (ff) have realized in twisted pitch ratio (TPR) 50. The reason is that when the twisted pitch ratio gradually decreases, stronger secondary flows and a higher velocity can be obtained. When compared with water, the highest Nu for TPR=50 has been obtained at φ=3.0 vol. % concentration as 61.15%. Also, when compared with TPR=0, the highest thermal performance enhancement (TPE) was realized at φ=3.0 vol. % concentration and Re=2000 conditions as 61.15% for TPR=50. Keywords: CFD Convective heat transfer Laminar flow Al2O3/water Twisted tape

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“…Based on the MHD, when an external MF is applied to the magnetizable NPs, creates an effect called the Lorentz force between the fluid and the MF source (Sheikholeslami et al, 2019). The Lorentz force acts HTF flow at the opposite direction, which causes occurrence of vortex in the applied MF region (Gürdal et al, 2022a(Gürdal et al, , 2022b(Gürdal et al, , 2022cSingh and Gohil, 2019). Another factor affecting THP is the magnetophoresis transport mechanism (Soltanipour, 2020)…”

Section: Effect Of Magnetic Field On Heat Transfer and Flow Character...mentioning

confidence: 99%

“…Many experimental and numerical studies have been carried out on this subject, especially using Fe 3 O 4 NPs. Recently, Gürdal et al (2022aGürdal et al ( , 2022bGürdal et al ( , 2022c have presented valuable studies in the literature about MagnetoHydroDynamics (MHD) area. A particular experimental study, in which the scope of MHD, has been carried out by Shahsavar et al (2023).…”

Section: Introductionmentioning

confidence: 99%

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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Implementation of hybrid nanofluid flowing in dimpled tube subjected to magnetic field

Cited by 35 publications

References 60 publications

RETRACTED ARTICLE: Second-order convergence analysis for Hall effect and electromagnetic force on ternary nanofluid flowing via rotating disk

RETRACTED ARTICLE: Second-order convergence analysis for Hall effect and electromagnetic force on ternary nanofluid flowing via rotating disk

Thermo-hydraulic Performance Analysis of Al2O3/water Nanofluid Flow in a Tube Extended by Twisted Tape

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

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