Unsteady MHD carbon nanotubes suspended nanofluid flow with thermal stratification and nonlinear thermal radiation

Ramzan, Muhammad; Riasat, Saima; Shah, Zahir; Thounthong, Phatiphat

doi:10.1016/j.aej.2020.04.004

Cited by 38 publications

(12 citation statements)

References 36 publications

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“…It is noticed that the thermal profile decreases for higher thermal relaxation time while increases for greater porosity parameter. A significant number of researchers have concentrated on the visualization of thermophysical features of hybrid nanofluids 27 – 30 .…”

Section: Introductionmentioning

confidence: 99%

Multiple slips impact in the MHD hybrid nanofluid flow with Cattaneo–Christov heat flux and autocatalytic chemical reaction

Gül

Ramzan

Chung

et al. 2021

Sci Rep

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The present study deliberates the nanofluid flow containing multi and single-walled carbon nanotubes submerged into Ethylene glycol in a Darcy–Forchheimer permeable media over a stretching cylinder with multiple slips. The innovation of the envisaged mathematical model is enriched by considering the impacts of non-uniform source/sink and modified Fourier law in the energy equation and autocatalytic chemical reaction in the concentration equation. Entropy optimization analysis of the mathematical model is also performed in the present problem. Pertinent transformations procedure is implemented for the conversion of the non-linear system to the ordinary differential equations. The succor of the Shooting technique combined with the bvp4c MATLAB software is utilized for the solution of a highly nonlinear system of equations. The impacts of the leading parameters versus engaged fields are inspected through graphical sketches. The outcomes show that a strong magnetic field strengthens the temperature profile and decays the velocity profile. Also, the fluid velocity is lessened for growing estimates of the parameter of slip. Additionally, it is detected that entropy number augmented for higher thermal relaxation parameter and Reynolds number. To substantiate the existing mathematical model, a comparison table is also added. An excellent correlation is achieved here.

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Section: Introductionmentioning

confidence: 99%

Multiple slips impact in the MHD hybrid nanofluid flow with Cattaneo–Christov heat flux and autocatalytic chemical reaction

Gül

Ramzan

Chung

et al. 2021

Sci Rep

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“…Volume concentration and temperature on ethylene glycol and MWCNT with dynamics viscosity of hybrid nanofluids was achieved by Afshari et al 38 . `Unsteady radiative ethylene glycol-based carbon nanotube flow between two revolving disks was inspected by Ramzan et al 39 . They marked that radial velocity and temperature gets increased for nanoparticle concentration.…”

Section: Introductionmentioning

confidence: 99%

Insight into the dynamics of second grade hybrid radiative nanofluid flow within the boundary layer subject to Lorentz force

Jawad

Saeed

Tassaddiq

et al. 2021

Sci Rep

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The magnetohydrodynamic hybrid second-grade nanofluid flow towards a stretching/shrinking sheet with thermal radiation is inspected in current work. Main concern of current investigation is to consider hybrid $$Al_{2} O_{3} - Cu$$ A l 2 O 3 - C u nanofluid which is perceived by hanging two dissimilar kinds of nanoparticles known as alumina and copper within the base fluid. The fluid motion is produced by non-linear stretching/shrinking sheet. The modeled equations which comprise of energy, motion and continuity equations are changed into dimensionless form using group of similar variables. To determine the solution of transformed problem, the Homotopy Analysis technique is used. The findings of this work revealed that the magnetic parameter improves the heat transfer rate. This work also ensures that there are non-unique solutions of modeled problem for shrinking case and a unique solution for stretching case. Higher values of $${\text{Re}}_{x}$$ Re x results in declining of flow field. Rise in $$M$$ M agrees to a decline in velocity distributions. Higher values of second order fluid parameter reduces the viscosity of fluid and accordingly velocity increases. Velocity profile is also a decreasing function of volume friction.

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“…With Cattaneo-Christov double diffusion, bidirectional stretched nanofluid flow was analyzed by Ahmad et al [9]. Ramzan et al [10] studied the Unsteady MHD carbon nanotubes with thermal convection and non-linear thermal radiation suspended nanofluid flow. Ali et al [11] numerically discussed the effects of Stefan blowing on thermal radiation and Cattaneo-Christov characteristics for nanofluid flow.…”

Section: Introductionmentioning

confidence: 99%

Attribution of Multi-slips and Bioconvection for Micropolar Nanofluids Transpiration Through Porous Medium over an Extending Sheet with PST and PHF Conditions

Abdal

Habib

Siddique

et al. 2021

Int. J. Appl. Comput. Math

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In order to cope with the rising thermal imbalances in important technological activities, efficient heat transfer attracts the attention of this work. An exploration for the multi-slip effects pertaining to micropolar-based nanofluid transportation through a porous medium in the presence of two thermal boundaries prescribed surface temperature and prescribed heat flux. The material and energy transportation takes place over an extending sheet. Arrhenius activation energy and thermal radiation are considered whereas a magnetic field of uniform strength acts normally to the sheet. Bio-convection is peculiar phenomena to avoid the possible settling of nano-entities. Moreover, the impact for three cases of mass transpiration (injection f w > 0, impermeable wall f w = 0, suction f w < 0) are taken into account. The fundamental formulation has developed a system of partial differential equations. With the help of similarity transformation, the leading equations are transmuted into ordinary differential equations. The fourth-order Runge-Kutta method with shooting techniques is employed to attain the numerical solutions. The impacts of physical parameters are displayed with the help of tables and graphs for two cases of thermal boundaries. The buoyancy ratio parameters Nr and bio convection Raleigh number decelerate the flow. The parameter of thermophoresis and Brownian motion enhances the temperature. Cattaneo-Christov parameter and Prandtl number reduce the temperature. KeywordsCattaneo-Christov • Porous medium • Micro-polar fluid • Magnetohydrodynamics • Nano-fluid • Multi-slips • Bio-convection List of Symbols x, y Cartesian coordinates N Microrotation vector B Ali Akgül

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Unsteady MHD carbon nanotubes suspended nanofluid flow with thermal stratification and nonlinear thermal radiation

Cited by 38 publications

References 36 publications

Multiple slips impact in the MHD hybrid nanofluid flow with Cattaneo–Christov heat flux and autocatalytic chemical reaction

Multiple slips impact in the MHD hybrid nanofluid flow with Cattaneo–Christov heat flux and autocatalytic chemical reaction

Insight into the dynamics of second grade hybrid radiative nanofluid flow within the boundary layer subject to Lorentz force

Attribution of Multi-slips and Bioconvection for Micropolar Nanofluids Transpiration Through Porous Medium over an Extending Sheet with PST and PHF Conditions

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