MHD Flow of Cu-Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;/Water Hybrid Nanofluid in Porous Channel: Analysis of Entropy Generation

Das, S.; Jana, R. N.; Makinde, Oluwole Daniel

doi:10.4028/www.scientific.net/ddf.377.42

Cited by 124 publications

(55 citation statements)

References 40 publications

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“…In the same year, the 3D magnetohydrodynamics MHD flow of hybrid nanofluid was considered by Devi and Devi [24], and their numerical results coincided with the experimental results obtained by Suresh et al [15]. Because of these encouraging findings, the newly found thermophysical properties have been considered by many researchers in their studies, such as Das et al [25], Mehryan et al [26], Chamkha et al [27], Hayat et al [28], Saba et al [29], Kumar and Sarkar [30], Kassai [31], and Ghalambaz et al [32]. Recently, Waini et al [33] considered the unsteady flow of hybrid nanofluid, by mixing copper and alumina (nanoparticles) with water (base fluid).…”

Section: Introductionmentioning

confidence: 52%

Dual Solutions and Stability Analysis of Magnetized Hybrid Nanofluid with Joule Heating and Multiple Slip Conditions

et al. 2020

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This paper investigates the steady, two dimensional, and magnetohydrodynamic flow of copper and alumina/water hybrid nanofluid on a permeable exponentially shrinking surface in the presence of Joule heating, velocity slip, and thermal slip parameters. Adopting the model of Tiwari and Das, the mathematical formulation of governing partial differential equations was constructed, which was then transformed into the equivalent system of non-linear ordinary differential equations by employing exponential similarity transformation variables. The resultant system was solved numerically using the BVP4C solver in the MATLAB software. For validation purposes, the obtained numerical results were compared graphically with those in previous studies, and found to be in good agreement, as the critical points are the same up to three decimal points. Based on the numerical results, it was revealed that dual solutions exist within specific ranges of the suction and magnetic parameters. Stability analysis was performed on both solutions in order to determine which solution(s) is/are stable. The analysis indicated that only the first solution is stable. Furthermore, it was also found that the temperature increases in both solutions when the magnetic parameter and Eckert number are increased, while it reduces as the thermal slip parameter rises. Furthermore, the coefficient of skin friction and the heat transfer rate increase for the first solution when the magnetic and the suction parameters are increased. Meanwhile, no change is noticed in the boundary layer separation for the various values of the Eckert number in the heat transfer rate.

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Section: Introductionmentioning

confidence: 52%

Dual Solutions and Stability Analysis of Magnetized Hybrid Nanofluid with Joule Heating and Multiple Slip Conditions

et al. 2020

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“…Step 2: By employing the traditional Hermite wavelet method [44], the subsequent trial solutions for Equations (31)- (33) have been further endorsed as:…”

Section: Modified Hermite Wavelet Methods and Solution Proceduresmentioning

confidence: 99%

“…Devi and Devi [30] opted for a numerical procedure, for magneto hydrodynamic flow of H 2 O based (Cu-AI 2 O 3 ) hybrid nanofluid over a stretchable porous surface. The readers can also explore a number of studies related to this subject in [31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Enhancement by Coupling of Carbon Nanotubes and SiO2 Nanofluids: A Numerical Approach

et al. 2019

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This article comprises the study of three-dimensional squeezing flow of (CNT-SiO2/H2O) hybrid nanofluid. The flow is confined inside a rotating channel whose lower wall is stretchable as well as permeable. Heat transfer with viscous dissipation is a main subject of interest. We have analyzed mathematically the benefits of hybridizing SiO 2 -based nanofluid with carbon nanotubes ( CNTs ) nanoparticles. To describe the effective thermal conductivity of the CNTs -based nanofluid, a renovated Hamilton–Crosser model (RHCM) has been employed. This model is an extension of Hamilton and Crosser’s model because it also incorporates the effect of the interfacial layer. For the present flow scenario, the governing equations (after the implementation of similarity transformations) results in a set of ordinary differential equations (ODEs). We have solved that system of ODEs, coupled with suitable boundary conditions (BCs), by implementing a newly proposed modified Hermite wavelet method (MHWM). The credibility of the proposed algorithm has been ensured by comparing the procured results with the result obtained by the Runge-Kutta-Fehlberg solution. Moreover, graphical assistance has also been provided to inspect the significance of various embedded parameters on the temperature and velocity profile. The expression for the local Nusselt number and the skin friction coefficient were also derived, and their influential behavior has been briefly discussed.

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“…For additional readings about production of entropy, see previous studies. [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] Hayat et al 38,39 discovered entropy generation during nanomaterial flow in spinning coordinates. Nouri et al 40 explored entropy generation of nanofluid flow with spherical heat source.…”

Section: Introductionmentioning

confidence: 99%

Study of Three dimensional Darcy–Forchheimer squeezing nanofluid flow with Cattaneo–Christov heat flux based on four different types of nanoparticles through entropy generation analysis

Zubair

Shah

Islam

et al. 2019

Advances in Mechanical Engineering

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In this research article, the unsteady nanofluid flow between two horizontal plates is discussed. The main focus of this study is on the explanation of the relative study of water-based nanofluids with four different types of nanoparticles. The nanoparticles selected for this specific research article are copper oxide (CuO), aluminum oxide (Al 2 O 3 ), copper (Cu), and silver (Ag). The upper plate is moving downward with time-dependent velocity while the lower plate is stretching horizontally. Also the lower plate is made up of porous medium. The stream in permeable region is characterized by Darcy-Forchheimer relation. Cattaneo-Christov heat flux model is used for heat transfer phenomena. Viscous dissipation effect is taken in account. Skin friction and Nusselt number are numerically calculated. Total entropy generation is also discussed for squeezing system. Transformation technique is applied to transform the model from partial differential equations to ordinary differential equations. Homotopy techniques are applied to solve the problem. The influence of important parameters on velocity, temperature, and entropy profiles have been shown graphically and discussed in detail.

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MHD Flow of Cu-Al<sub>2</sub>O<sub>3</sub>/Water Hybrid Nanofluid in Porous Channel: Analysis of Entropy Generation

Cited by 124 publications

References 40 publications

Dual Solutions and Stability Analysis of Magnetized Hybrid Nanofluid with Joule Heating and Multiple Slip Conditions

Dual Solutions and Stability Analysis of Magnetized Hybrid Nanofluid with Joule Heating and Multiple Slip Conditions

Heat Transfer Enhancement by Coupling of Carbon Nanotubes and SiO2 Nanofluids: A Numerical Approach

Study of Three dimensional Darcy–Forchheimer squeezing nanofluid flow with Cattaneo–Christov heat flux based on four different types of nanoparticles through entropy generation analysis

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