Numerical analysis of entropy generation of a nanofluid in a semi-annulus porous enclosure with different nanoparticle shapes in the presence of a magnetic field

Seyyedi, Seyyed Masoud; Dogonchi, A.S.; Nuraei, Rahele; Ganji, D.D.

doi:10.1140/epjp/i2019-12623-1

Cited by 53 publications

(20 citation statements)

References 48 publications

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“…Similar studies on heat capacitance of alumina nanoparticles were done by Sandeep et al (2017), ), Dogonchi, Armaghani, Chamkha and Ganji (2019), Dogonchi, Sheremet, Ganji and Pop (2019), Dogonchi, Tayebi, Chamkha and Ganji (2019, Dogonchi et al (2019a, b), Dogonchi, Waqas, Gulzar, Hashemi-Tilehnoee, Seyyedi and Ganji (2019) and Dogonchi, Waqas, Afshar, Seyyedi, Hashemi-Tilehnoee, Chamkha and Ganji (2019). Motivated by the diverse applications of nanofluids many researchers (Das et al, 2019;Dogonchi and Hashim, 2019;Acharya et al, 2019a, b;Acharya, Maity and Kundu, 2019;Dogonchi, Armaghani, Chamkha and Ganji, 2019;Dogonchi, Sheremet, Ganji and Pop, 2019;Dogonchi, Tayebi, Chamkha and Ganji, 2019;Dogonchi et al, 2019a, b;Dogonchi, Waqas, Gulzar, Hashemi-Tilehnoee, Seyyedi and Ganji, 2019;Dogonchi, Waqas, Afshar, Seyyedi, Hashemi-Tilehnoee, Chamkha and Ganji, 2019;Dogonchi et al, 2018;Seyyedi, Sahebi, Dogonchi and Hashemi-Tilehnoee, 2019;Seyyedi, Dogonchi, Nuraei, Ganji and Hashemi-Tilehnoee, 2019;Seyyedi, Dogonchi, Hashemi-Tilehnoee, Asghar, Waqas and Ganji, 2019) analyzed the impact of nanoadditives in upgrading the flow, heat transfer rate of different nanofluids.…”

Section: Introductionmentioning

confidence: 77%

“…An analysis on quantifying the heat transfer of nanofluids past a microchannel was done by Sarafraz et al (2019). Also, ), Seyyedi, Sahebi, Dogonchi and Hashemi-Tilehnoee (2019), Seyyedi, Dogonchi, Nuraei, Ganji and Hashemi-Tilehnoee (2019 and Seyyedi, Dogonchi, Hashemi-Tilehnoee, Asghar, Waqas and Ganji (2019) numerically simulated the heat transfer phenomena in a free convective MHD flow past an oblique cavity. Quite a few authors (Acharya et al, 2019a, b;Acharya, Maity and Kundu, 2019;Seyyedi, Sahebi, Dogonchi and Hashemi-Tilehnoee, 2019;Seyyedi, Dogonchi, Nuraei, Ganji and Hashemi-Tilehnoee, 2019;Seyyedi, Dogonchi, Hashemi-Tilehnoee, Asghar, Waqas and Ganji, 2019) elucidated the effects of convective heat transfer in nanofluids and obtained numerical results.…”

Section: Introductionmentioning

confidence: 99%

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Unsteady magnetohydrodynamic radiative liquid thin film flow of hybrid nanofluid with thermophoresis and Brownian motion

Sulochana

Aparna

2019

MMMS

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Purpose The purpose of this paper is to analyze heat and mass transport mechanism of unsteady MHD thin film flow of aluminium–copper/water hybrid nanofluid influenced by thermophoresis, Brownian motion and radiation. Design/methodology/approach The authors initially altered the time dependent set of mathematical equations into dimensionless form of equations by using apposite transmutations. These equations are further solved numerically by deploying Runge–Kutta method along with shooting technique. Findings Plots and tables for skin friction coefficient, Nusselt number, Sherwood number along with velocity, temperature and concentration profiles against pertinent non-dimensional parameters are revealed. The study imparts that aluminium–copper hybrid nanoparticles facilitate higher heat transfer rate compared to mono nanoparticles. It is noteworthy to disclose that an uplift in thermophoresis and Brownian parameter depreciates heat transfer rate, while concentration profiles boost with an increase in thermophoretic parameter. Research limitations/implications The current study targets to investigate heat transfer characteristics of an unsteady thin film radiative flow of water-based aluminium and copper hybrid nanofluid. The high thermal and electrical conductivities, low density and corrosion resistant features of aluminium and copper with their wide range of industrial applications like power generation, telecommunication, automobile manufacturing, mordants in leather tanning, etc., have prompted us to instil these particles in the present study. Practical implications The present study has many practical implications in the industrial and manufacturing processes working on the phenomena like heat transfer, magnetohydrodynamics, thermal radiation, nanofluids, hybrid nanofluids with special reference to aluminium and copper particles. Originality/value To the best extent of the authors’ belief so far no attempt is made to inspect the flow, thermal and mass transfer of water-based hybridized aluminium and copper nanoparticles with Brownian motion and thermophoresis.

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Section: Introductionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Unsteady magnetohydrodynamic radiative liquid thin film flow of hybrid nanofluid with thermophoresis and Brownian motion

Sulochana

Aparna

2019

MMMS

View full text Add to dashboard Cite

show abstract

“…In which Here, m is the shape factor. The shape factor for various particle shapes is given in Table 1 [13][14][15]. In addition, the nanofluid thermo-physical features are portrayed in Table 2 [16][17][18].…”

Section: Problem Description and Basic Equationsmentioning

confidence: 99%

A theoretical nanofluid analysis exhibiting hydromagnetics characteristics employing CVFEM

Mondal

Dogonchi

Tripathi

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

Self Cite

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The heat transfer properties of current liquids are specifically improved by suspending nanocrystalline solid elements smaller than 100 nm in diameter. These liquids are considered as potential working fluids for applications such as car radiators, solar collectors, electronic frost systems, nuclear reactors and heat pipes. Due to such uses, here we formulate CuO-H 2 O nanofluids in a two-dimensional circular geometry with a rhombus-shaped barrier maintaining the constant temperature of two adjacent high walls. The streamlines and isotherms have been plotted using the control volume finite element method and applying the KKL model for nanofluid simulation. The results were calculated for different concentrations of nanoparticles, Hartmann number and Rayleigh number. It was found that in a large number of volume fraction and Hartmann number, the isotherms near the outer margin are more prominent while the low-volume-concentration isotherms are concentrated near the adiabatic wall of the obstacle. It was also found that there is a temperature gradient in the radial direction at a higher volume fraction and Hartmann number (Ha). The temperature gradient was limited to adiabatic walls of the obstruction in lower volume fraction and Ha. Two similar shapes but differently directed eddies are formed for any value of Ra in streamlines. |Ψ max | nf increases with an increase in the values of Ra from 10 3 to 10 5 .

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“…Sadeghi et al 33 studied ferro-fluid with the presence of two cylinders. Seyyedi et al 34 solved different shape nano-particles by using entropy generation. Dogonchi et al 35 investigated heat and mass transfer effects of nanofluid in an irregular triangular enclosure.…”

Section: Introductionmentioning

confidence: 99%

On solution existence of MHD Casson nanofluid transportation across an extending cylinder through porous media and evaluation of priori bounds

Abdal

Hussain

Siddique

et al. 2021

Sci Rep

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It is a theoretical exportation for mass transpiration and thermal transportation of Casson nanofluid over an extending cylindrical surface. The Stagnation point flow through porous matrix is influenced by magnetic field of uniform strength. Appropriate similarity functions are availed to yield the transmuted system of leading differential equations. Existence for the solution of momentum equation is proved for various values of Casson parameter $$\beta $$ β , magnetic parameter M, porosity parameter $$K_p$$ K p and Reynolds number Re in two situations of mass transpiration (suction/injuction). The core interest for this study aroused to address some analytical aspects. Therefore, existence of solution is proved and uniqueness of this results is discussed with evaluation of bounds for existence of solution. Results for skin friction factor are established to attain accuracy for large injection values. Thermal and concentration profiles are delineated numerically by applying Runge-Kutta method and shooting technique. The flow speed retards against M, $$\beta $$ β and $$K_p$$ K p for both situations of mass injection and suction. The thermal boundary layer improves with Brownian and thermopherotic diffusions.

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Numerical analysis of entropy generation of a nanofluid in a semi-annulus porous enclosure with different nanoparticle shapes in the presence of a magnetic field

Cited by 53 publications

References 48 publications

Unsteady magnetohydrodynamic radiative liquid thin film flow of hybrid nanofluid with thermophoresis and Brownian motion

Unsteady magnetohydrodynamic radiative liquid thin film flow of hybrid nanofluid with thermophoresis and Brownian motion

A theoretical nanofluid analysis exhibiting hydromagnetics characteristics employing CVFEM

On solution existence of MHD Casson nanofluid transportation across an extending cylinder through porous media and evaluation of priori bounds

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