Heat and mass transfer analysis of time-dependent tangent hyperbolic nanofluid flow past a wedge

Atif, S. M.; Hussain, Shafqat; Sagheer, Muhammad

doi:10.1016/j.physleta.2019.01.003

Cited by 68 publications

(29 citation statements)

References 39 publications

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“…The physical parameters appear in this study are the skin friction coefficient, the local Nusselt number and the local Sherwood number can readily be obtained from (13), (14) and (15) i.e. 5 Results and Discussion Table 1 brings forth the excellent comparative agreement with literature for the skin friction coefficient in steady flow.…”

Section: Numerical Proceduresmentioning

confidence: 64%

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Computational Analysis for Unsteady and Steady Magnetohydrodynamic Radiating Nano Fluid Flow past a Slippery Stretching Sheet Immersed in a Permeable Medium

et al. 2020

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This paper discusses unsteady/steady radiating magnetohydrodynamic (MHD) nanofluid flow over a slippery stretching sheet. Introducing similarity variables reduces partial differential equations (PDEs) into a new set of partial differential equations (PDEs) where a solution is a function of two independent variables. For the time integration, we perform first order explicit Euler method and spatial derivatives are approximated by the finite differences. The steady flow solution is computed by MATLAB built-in solver bvp4c. The flow regime is controlled by a number of thermophysical parameters such as thermal Grashof number (Gr), Lewis number (Le), Eckert number (Ec), Brownian motion (Nb) and thermophoresis (Nt) and heat source or sink (S), Prandtl number (Pr), magnetic field parameter (M), and Darcy number (Da). The findings are analyzed by validation through graphs and tables for velocity, temperature and concentration profiles and the skin friction coefficient, the local Nusselt and the local Sherwood numbers, respectively. The results converge in accordance with the grid convergence test. For an unsteady flow, the temperature of the nanofluid is higher near the surface without thermophoresis parameter Nt and reduced significantly when Nt is present. Moreover, concentration boundary layer thickness decreases with an increase of Darcy number Da.

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Section: Numerical Proceduresmentioning

confidence: 64%

“…They made enquiries about the effects of Brownian motion and the thermophoresis. An interesting study of time dependent tangent hyperbolic nanofluid flow over a wedge have been presented in [14]. They applied shooting technique for two types of wedges: flow over a static and a flow over a stretching wedges.…”

Section: Introductionmentioning

confidence: 99%

Computational Analysis for Unsteady and Steady Magnetohydrodynamic Radiating Nano Fluid Flow past a Slippery Stretching Sheet Immersed in a Permeable Medium

et al. 2020

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“…Based on the aforesaid considerations, the fluid transport equations of the present problem in Cartesian coordinates (x, y) are expressed as (Atif et al. ; 15 Basha et al. ; 16,35 Buongiorno; 37 Raju et al.…”

Section: Mathematical Formulationmentioning

confidence: 99%

Numerical simulation of blood nanofluid flow over three different geometries by means of gyrotactic microorganisms: Applications to the flow in a circulatory system

Basha

Sivaraj

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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Biomedical engineers, medical scientists, and clinicians are expressing a notable interest in the measurement of blood flow rate because it is used to detect cardiovascular diseases such as atherosclerosis and arrhythmia. Several researchers have adopted various non-Newtonian fluid models to investigate blood flow in the circulatory system. Because many non-Newtonian fluid models like Herschel Buckley, Powell-Eyring fluid, tangent hyperbolic fluid, and Williamson fluid exhibit the characteristics of blood. The tangent hyperbolic fluid model expresses the rheological characteristics of blood more accurately due to its shear-thinner properties. This work is performed to express the significance of the induced magnetic field and gyrotactic microorganisms on the flow of tangent hyperbolic nanofluid over a plate, wedge and stagnation point of the plate. Suitable self-similarity variables are employed to convert the fluid transport equations into ordinary differential equations which have been solved with the use of the Runge-Kutta-Fehlberg (RKF) approach. The impacts of active parameters on transport properties of the fluid are illustrated with graphs and tables. The growing magnetic parameter lessens the blood nanofluid velocity over three geometries. Blood nanofluid has a higher heat transfer rate over a stagnation point compared with other two geometries. Blood nanofluid temperature augments for uplifting the thermophoresis parameter. Peclet number shows a high impact on microorganisms density in a blood nanofluid. This exploration can provide a clear view regarding the heat and mass transfer behavior of blood flow in a circulatory system and various hyperthermia treatments like treatment of cancer.

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“…Effect of solar radiation on MHD stagnation point nanofluid flow was discussed by Ghasemia and Hatami [15] with a key finding that the energy profile is hiked as the Biot number is increased rapidly. e phenomena of thermal radiation have much significance in the transfer of heat and were discussed by many authors in the literature [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Stagnation Point Flow of EMHD Micropolar Nanofluid with Mixed Convection and Slip Boundary

et al. 2021

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The aim of this numerical research is to study the stagnation point flow of the electrical magnetohydrodynamic micropolar nanofluid with slip conditions past a stretching sheet. The phenomenon of linear thermal radiation, Ohmic and internal heating, has also been considered in the energy equation. The modelled PDEs are converted into ODEs via similarity transformation, and converted ODEs are tackled via the shooting technique. The features of assorted parameters on the axial and angular velocities and energy and concentration fields are sketched. The numerical values of the Sherwood and Nusselt numbers have been computed numerically and displayed in the form of tables. Our analysis shows that the heat transfer rate is decreased as the thermal slip parameter and the diffusion slip parameter are enhanced. The present study illustrates that the energy and concentration distribution are decreased with each of the mass free convection parameter, stagnation parameter, and thermal free convection parameter.

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Heat and mass transfer analysis of time-dependent tangent hyperbolic nanofluid flow past a wedge

Cited by 68 publications

References 39 publications

Computational Analysis for Unsteady and Steady Magnetohydrodynamic Radiating Nano Fluid Flow past a Slippery Stretching Sheet Immersed in a Permeable Medium

Computational Analysis for Unsteady and Steady Magnetohydrodynamic Radiating Nano Fluid Flow past a Slippery Stretching Sheet Immersed in a Permeable Medium

Numerical simulation of blood nanofluid flow over three different geometries by means of gyrotactic microorganisms: Applications to the flow in a circulatory system

Stagnation Point Flow of EMHD Micropolar Nanofluid with Mixed Convection and Slip Boundary

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