Mixed convection of non-Newtonian nanofluid in an H-shaped cavity with cooler and heater cylinders filled by a porous material: Two phase approach

Li, Zhixiong; Barnoon, Pouya; Toghraie, Davood; Dehkordi, Reza Balali; Afrand, Masoud

doi:10.1016/j.apt.2019.08.014

Cited by 131 publications

(31 citation statements)

References 56 publications

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“…It is important to mention here that Makinde and Animasaun [20] investigated an admirable work related to magnetized nanofluid flow alongside quartic autocatalysis chemical reaction and bio-convection, and recorded that, for a fixed numeric of magnetic parameters, the local skin friction further develops at a larger thickened parametric value, whereas the rate of local heat transfer decreases at high-temperature parametric values past an uppermost subsurface of a paraboloid of uprising. Scrutinizing the definitive utilities for nanofluid and MHD, few recent investigations can be found [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38].Activation energy is the minimum supply of energy needed to accomplish a chemical reaction. Very few researchers have studied the activation energy along with chemical reaction to date.…”

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confidence: 99%

Study of Activation Energy on the Movement of Gyrotactic Microorganism in a Magnetized Nanofluids Past a Porous Plate

et al. 2020

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The present study deals with the swimming of gyrotactic microorganisms in a nanofluid past a stretched surface. The combined effects of magnetohydrodynamics and porosity are taken into account. The mathematical modeling is based on momentum, energy, nanoparticle concentration, and microorganisms’ equation. A new computational technique, namely successive local linearization method (SLLM), is used to solve nonlinear coupled differential equations. The SLLM algorithm is smooth to establish and employ because this method is based on a simple univariate linearization of nonlinear functions. The numerical efficiency of SLLM is much powerful as it develops a series of equations which can be subsequently solved by reutilizing the data from the solution of one equation in the next one. The convergence was improved through relaxation parameters in the study. The accuracy of SLLM was assured through known methods and convergence analysis. A comparison of the proposed method with the existing literature has also been made and found an excellent agreement. It is worth mentioning that the successive local linearization method was found to be very stable and flexible for resolving the issues of nonlinear magnetic materials processing transport phenomena.

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confidence: 99%

Study of Activation Energy on the Movement of Gyrotactic Microorganism in a Magnetized Nanofluids Past a Porous Plate

et al. 2020

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“…The characteristic of a NF includes its thermo-physical properties that establish the relationship between the base fluid and the nanoparticles. These basic relationships are defined as follows [28][29][30][31][32][33]:…”

Section: Continuity Equationmentioning

confidence: 99%

Using CFD To Assess The Impact of Helical Baffle On The First- Law And Second-Law Performance of Water-CuO Nanofluid Inside A Hairpin Heat Exchanger

Shahsavar

Toghraie

Barnoon

2021

Preprint

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This study is devoted to the numerical assessment of the influence of helical baffle on the hydrothermal aspects and irreversibility behavior of the turbulent forced convection flow of water-CuO nanofluid (NF) inside a hairpin heat exchanger. The variations of the first-law and second-law performance metrics are investigated in terms of Reynolds number (Re), volume concentration of NF (φ) and baffle pitch (B). The results showed that the NF Nusselt number grows the rise of both the Re and φ whereas it declines by boosting with the rise of baffle pitch. In addition, the outcomes depicted that the rise of both the T and φ results in the rise of pressure drop, while it declines with the increase of baffle pitch. Moreover, it was found that the best first-law performance of the NF belongs to the case B=33.3 mm, φ=2% and Renf=10000. Furthermore, it was shown that irreversibilities due to fluid friction and heat transfer augment with the rise of Re while the rise of baffle pitch results in the decrease of frictional irreversibilities. Finally, the outcomes revealed that with the rise of baffle pitch, the heat transfer irreversibilities first intensifies and then diminishes.

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“…The nonlinear ODEs (11) and (13) are solved numerically implementing MATLAB function bvp4c and using…”

Section: Numerical Solutionmentioning

confidence: 99%

“…The significant upshot of the present investigation is that velocity and the temperature profiles show an opposing trend for the suction/ injection parameter. More studies highlighting numerous aspects of nanofluids may be found at [10][11][12][13][14][15][16][17][18][19][20][21] . The appropriate dispersion of nanoparticles causes remarkable enhancement in the thermal conductivity of the customary fluid.…”

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confidence: 99%

Numerical treatment of radiative Nickel–Zinc ferrite-Ethylene glycol nanofluid flow past a curved surface with thermal stratification and slip conditions

Ramzan

Gul

Chung

et al. 2020

Sci Rep

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The inadequate cooling capacity of the customary fluids forced the scientists to look for some alternatives that could fulfill the industry requirements. The inception of nanofluids has revolutionized the modern industry-oriented finished products. Nanofluids are the amalgamation of metallic nanoparticles and the usual fluids that possess a high heat transfer rate. Thus, meeting the cooling requirements of the engineering and industrial processes. Having such amazing traits of nanofluids in mind our aim here is to discuss the flow of nanofluid comprising Nickel–Zinc Ferrite and Ethylene glycol over a curved surface with heat transfer analysis. The heat equation contains nonlinear thermal radiation and heat generation/absorption effects. The envisioned mathematical model is supported by the slip and the thermal stratification boundary conditions. Apposite transformations are betrothed to obtain the system of ordinary differential equations from the governing system in curvilinear coordinates. A numerical solution is found by applying MATLAB build-in function bvp4c. The authentication of the proposed model is substantiated by comparing the results with published articles in limiting case. An excellent concurrence is seen in this case. The impacts of numerous physical parameters on Skin friction and Nusselt number and, on velocity and temperature are shown graphically. It is observed that heat generation/absorption has a significant impact on the heat transfer rate. It is also comprehended that velocity and temperature distributions have varied behaviors near and far away from the curve when the curvature is enhanced.

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Mixed convection of non-Newtonian nanofluid in an H-shaped cavity with cooler and heater cylinders filled by a porous material: Two phase approach

Cited by 131 publications

References 56 publications

Study of Activation Energy on the Movement of Gyrotactic Microorganism in a Magnetized Nanofluids Past a Porous Plate

Study of Activation Energy on the Movement of Gyrotactic Microorganism in a Magnetized Nanofluids Past a Porous Plate

Using CFD To Assess The Impact of Helical Baffle On The First- Law And Second-Law Performance of Water-CuO Nanofluid Inside A Hairpin Heat Exchanger

Numerical treatment of radiative Nickel–Zinc ferrite-Ethylene glycol nanofluid flow past a curved surface with thermal stratification and slip conditions

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