Slip velocity and temperature jump effects on molybdenum disulfide MoS2 and silicon oxide SiO2 hybrid nanofluid near irregular 3D surface

Khan, M. Ijaz; Rasheed, Amer

doi:10.1016/j.aej.2020.11.019

Cited by 52 publications

(17 citation statements)

References 49 publications

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“…We have utilized the fractional Caputo time derivative to develop a mathematical model [51]. Assuming all the above conditions, the principal boundary layer equations of momentum and energy for the fractional hybrid nanofluid are as follows [25,[52][53][54]:…”

Section: Description Of the Mathematical Problemmentioning

confidence: 99%

“…More than one form of nanoparticles is utilized in such a category of nanocomposites. e type of nanofluids mentioned earlier possesses better properties when compared with mono nanofluids, and a number of researchers have paid attention to these fluids [24][25][26]. Values of the thermal conductivity of base fluids and different nanofluids are displayed in Figures 4(a) and 4(b), respectively [19,[27][28][29].…”

Section: Introductionmentioning

confidence: 99%

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Computational Analysis of Heat Transfer Intensification of Fractional Viscoelastic Hybrid Nanofluids

Khan

Rasheed

2021

Mathematical Problems in Engineering

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In the current article, we have performed computational analysis on convection heat transfer of a hybrid nanofluid in occurrences where porous media and the effect of magnetic force are involved. In order to assess the time-fractional derivatives, Caputo’s notion is utilized while the Darcy–Forchheimer model is applied due to the involvement of the porous medium. Moreover, the boundary conditions are assumed to be nonuniform through the equilibrium between the surface tension and shear stress over a semi-infinite permeable flat surface. Keeping in view the complexity of the fractional derivative model and nonuniform boundary conditions, the problem in question is a complicated one. Accordingly, the coupled momentum and energy equation is linearized and the finite difference scheme is then applied and implemented in MATLAB Code R2020b. Furthermore, we have also offered a comprehensive analysis regarding error and convergence of the proposed numerical method. The newly introduced numerical technique to determine the numerical solutions and some unique and interesting deductions are established. From the computational results, one can conclude that the fluid motion in both hybrid and single nanofluids slows down due to magnetic field, porosity, and inertia coefficient as the magnetic and electric fields are synchronized due to the formation of the Lorentz force and viscous interference. We believe that our proposed numerical technique regarding employment of the fractional model for heat transfer application to the hybrid nanofluid over a semi-infinite nonuniform permeable surface along with variable heat flux is not found in the literature so far. Furthermore, the obtained results will be a valuable addition to fractional calculus from an engineering point of view.

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Section: Description Of the Mathematical Problemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Computational Analysis of Heat Transfer Intensification of Fractional Viscoelastic Hybrid Nanofluids

Khan

Rasheed

2021

Mathematical Problems in Engineering

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“…The effects of slips and temperature jumps have been studied separately in the literature [14][15][16][17][18], but their combined effort is more important for practical applications such as nuclear power plants, rockets, and space vehicles. Mansur et al [14] studied the flow of a nanofluid's boundary layer through a stretching/shrinking sheet with hydrodynamic and thermal slip boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

“…The findings of this study demonstrated that the slip parameter has a substantial impact on the flow velocity and surface shear stress on the stretched sheet, as well as leading to reductions in the Nusselt number and the Sherwood number. The authors of [18] investigated (MoS 2 ) and (SiO 2 )/(H 2 0) hybrid nanofluid flow and improved its thermophysical properties in the presence of slips, temperature jumps, and exothermic effects on a non-uniform vertical surface. They determined that increasing the value of the porosity parameter causes a decrease in the intensity of the velocity field, but the same behavior may be observed for the skin friction and the heat transfer rate.…”

Section: Introductionmentioning

confidence: 99%

Insights into Partial Slips and Temperature Jumps of a Nanofluid Flow over a Stretched or Shrinking Surface

Elazem

2021

Energies

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This paper elucidates the significance of partial slips and temperature jumps on the heat and mass transfer of a boundary layer nanofluid flowing through a stretched or shrinking surface. Considerable consideration is given to the dynamic properties of the nanofluid process, including Brownian motion and thermophoresis. A similarity transform is introduced to obtain a physical model of nonlinear ordinary differential equations, and the Chebyshev method of collocation is used to numerically analyze the influences of parameters of physical flow such as slip, temperature jump, Brownian motion, thermophoresis, suction (or injection) parameters, and Lewis and Prandtl numbers. The numerical results for temperature and concentration profiles, and heat and mass transfer rates, are graphically represented, and insights into the effects of slips and temperature jumps are revealed. In the case of a stretched sheet, the slip parameter enhances the temperature field and increases the thermal boundary layer thickness as well as the concentration function’s boundary layer thickness. When the slip parameter is raised in the case of the shrinking sheet, the dual solutions for temperature and concentration functions are reduced. For the first solution, both the temperature and concentration functions drop as the slip parameter increases, but for the second solution, both the temperature and concentration functions rise as the slip parameter increases. The discoveries have applications in a number of disciplines, including heat transfer in a solar energy collector. Glass blowing, annealing, and copper wire thinning are just a few of the technical and oilfield applications for the current problem. In high-temperature industrial applications, radiation heat transfer research is critical.

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“…Sludge cannot be removed from the internal parts of the hydraulic apparatus or system. Atypical changes in viscosity breach the performance of additives added in the base oil for improving its functional properties [7] and at last defunct the complete hydraulic system. Ageing and thermal degradation of hydraulic oil can be ascertained expeditiously by measuring incongruity in terms of viscosity and change in colour right from amber to brown and to black with putrid or sour odour.…”

Section: Introductionmentioning

confidence: 99%

Sludge Formation Analysis in Hydraulic Oil of Load Haul Dumper 811MK V Machine Running at Elevated Temperatures for Bioenergy Applications

Siddiqui

Pal

Dewangan

et al. 2021

International Journal of Chemical Engineering

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Hydraulic oil degrades expediently during operating at elevated temperatures, and due to oil degradation, malfunction of all hydraulic components starts that hampers the hydraulic functioning of the machine. An inefficient component of the hydraulic system converts useful energy into heat. Overheating starts when the rate of heat energy escaping from the system overcomes the rate of heat dissipation. Viscosity, total acidic number (TAN), rheology, and FTIR analyses were carried out on the oil samples collected chronically, and the reasons for degradation and sludge formation were evaluated; the results showed that thermal cracking resistance capacity of the oil was low due to the imbalance percentage of additives in the base oil. Sludge impaired the system efficiency and prejudicially creates repercussions on power consumption. Sludge can be recycled for biofuel and to avoid imbalance in the ecosystem. The test result is plotted in a 3D view graph using the MATLAB R 2019 software for a better explanation. Variation in the behaviour of the hydraulic fluid with respect to time, temperature, shear stress, and shear rate was studied, and the result is validated with correlation and regression analyses.

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Slip velocity and temperature jump effects on molybdenum disulfide MoS2 and silicon oxide SiO2 hybrid nanofluid near irregular 3D surface

Cited by 52 publications

References 49 publications

Computational Analysis of Heat Transfer Intensification of Fractional Viscoelastic Hybrid Nanofluids

Computational Analysis of Heat Transfer Intensification of Fractional Viscoelastic Hybrid Nanofluids

Insights into Partial Slips and Temperature Jumps of a Nanofluid Flow over a Stretched or Shrinking Surface

Sludge Formation Analysis in Hydraulic Oil of Load Haul Dumper 811MK V Machine Running at Elevated Temperatures for Bioenergy Applications

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