Heat and mass transfer enhancement of SWCNTs and MWCNTs based Maxwell nanofluid flow over a vertical cone with slip effects

In this communication, the dynamics of a non‐Newtonian tangent hyperbolic fluid with nanoparticles past a nonuniformly thickened stretching surface is discussed. We examine the impact of nonlinear mixed convection flow of a hyperbolic tangent fluid with the Cattaneo‐Christov heat and mass diffusion model past a bidirectional stretching surface. The effects of activation energy and magnetic field are incorporated in the analysis. The variables of transformations are used to change the nonlinear partial differential equations into ordinary differential equations (ODEs). Then, these ODEs are numerically solved using the Matlab routine of the bvp4c algorithm. The derailed analysis of the influences of the governing parameters on velocities along the x‐ and y‐axes, temperature and concentration profiles are presented using tables and figures. The outcomes of these parameters reveal that the velocities along the x‐ and y‐axes are decreased for the values of We increasing but the opposite behavior is observed as the value of A increases. The results also show that the values of e and N b rise as the temperature profiles increase. Similar influences are observed on the profile of concentration as the values of F and f rise. As the values of N 1 go from 0.27 to 0.25, the skin‐friction coefficient increases, and similarly, as N b goes from 0.3 to 0.1, − θ false′ false( 0 false) is enhanced.

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“…The mathematical forms 49 of the skin‐friction coefficient c f , local Nusselt number Nu x , and Sherwood number Sh x are given as

\frac{c_{f}}{2 μ \frac{\partial u}{\partial z}} = \frac{1}{ρ u_{w}^{2}}, N u_{x} (T_{w} - T_{\infty}) = (d + x + y) \frac{\partial T}{\partial z}, S h_{x} (C_{w} - C_{\infty}) = (d + x + y) \frac{\partial C}{\partial z},

\begin{matrix} trueleft \\ {({italicRe}_{x})}^{0.5} c_{f} = 2 {(\frac{n + 1}{2})}^{0.5} \frac{n}{2} W e ((1 - n) + g false″ (0)) g false″ (0), \frac{N u_{x}}{{false({Re}_{x} false)}^{0.5}} = {(\frac{n + 1}{2})}^{0.5} θ false' (0), \\ \frac{S h_{x}}{{false({Re}_{x} false)}^{0.5}} = {(\frac{n + 1}{2})}^{0.5} ϕ false' (0) . \end{matrix}

where

{italicRe}_{x} = \frac{(x + c) U_{x}}{υ}

.…”

Section: Mathematical Formulationmentioning

confidence: 99%

Nonlinear mixed convection flow of a tangent hyperbolic fluid with activation energy

Ibrahim

Gizewu

2020

Heat Trans

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“…Due to the unique properties such as high mechanical strength, rigidity, hardness, adhesion, high dimensional ratio, chemical stability and high thermal and electrical conductivity, they provide many applications in nanotechnology, chemical and biochemical sensors, catalytic, conductive plastics, structural composite materials, etc. Prabhavathi et al [10] analyzed the slip effects of SWCNTs and MWCNTs based Maxwell nanofluid flow and identified that the temperature of both nanofluids intensifies as the values of Maxwell parameter rises. Sreedevi and Sudarsana Reddy [11] deliberated the impact of radiation on MWCNT-kerosene-dependent nanofluid over a wedge.…”

Section: Introductionmentioning

confidence: 99%

Heat and Mass Transfer Enhancement of MHD Hybrid Nanofluid Flow in the Presence of Activation Energy

Shanmugapriya

Sundareswaran

Kumar

2021

International Journal of Chemical Engineering

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In this study, water is apprehended as conventional fluid with the suspension of two types of hybrid nanoparticles, namely, single-walled CNTs (SWCNTs) and multiwalled CNTs (MWCNTs). The influence of a magnetic field, thermal radiation, and activation energy with binary chemical reaction has been added to better examine the fine point of hybrid nanofluid flow. The mathematical structure regarding the physical model for hybrid nanofluid is established and then the similarity variables are induced to transmute the leading PDEs into nonlinear ODEs. These equations were solved using the shooting technique together with RKF 4-5th order for various values of the governing parameters numerically. The results of prominent parameters were manifested through graphs and tables. The results indicate that the hybrid nanofluid SWCNT − MWCNT / water is fully adequate in cooling and heating compared to other hybrid nanofluids. In addition, the rise in the value of activation energy E upsurges the nanoparticle transfer rate of hybrid nanofluid.

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“…Abbasi et al 5 provided theoretical and experimental results on heat transfer enhancement of multiwalled carbon nanotubes (MWCNTs) and TiO 2 nanofluids and discovered that the nanofluid made with

MWCNTs

has more thermal conductivity than the nanofluid made with TiO 2 . Prabhavathi et al 6 studied mass and heat transfer amplification of flow of a nanofluid over a vertical cone equipped with multi‐ and single‐walled carbon nanotubes (SWCNT) by taking the chemical reaction and magnetic field parameter into account and identified a remarkable intensification in the variation of both nanofluids' temperature with rising values of the volume fraction of nanoparticle number. Estelle et al 7 investigated the characteristics of a nanofluid with water and water‐EG mixture as base fluid and carbon nanotubes as nanoparticles and perceived amplification in the thermal conductivity with a higher volume fraction.…”

Section: Introductionmentioning

confidence: 99%

Heat and mass transfer analysis of MWCNT‐kerosene nanofluid flow over a wedge with thermal radiation

Sreedevi¹,

Reddy²

2020

Heat Trans

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A comparison between the unsteady and steady magnetohydrodynamics Tiwari-Das model Williamson nanofluid flow through a wedge occupied by carbon nanotubes of multiwalled type nanoparticles and kerosene as base fluid is presented in this analysis. A suitable similarity variable technique is adopted to transmute the governing partial differential equations into a set of nonlinear ordinary differential equations (ODEs). To solve these ODEs together along with boundary conditions, we have utilized finite element analysis. The behavior of concentration, temperature, and velocity sketches for diverse values of the pertinent parameters is plotted through graphs. The impact on the above parameters on the rates of velocity, heat, and concentration is also evaluated and depicted through tables. It is noted that as the values of nanoparticle volume fraction parameter rises, the rates of temperature increase in both the unsteady and steady cases.

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Heat and mass transfer enhancement of SWCNTs and MWCNTs based Maxwell nanofluid flow over a vertical cone with slip effects

Cited by 43 publications

References 37 publications

Nonlinear mixed convection flow of a tangent hyperbolic fluid with activation energy

Nonlinear mixed convection flow of a tangent hyperbolic fluid with activation energy

Heat and Mass Transfer Enhancement of MHD Hybrid Nanofluid Flow in the Presence of Activation Energy

Heat and mass transfer analysis of MWCNT‐kerosene nanofluid flow over a wedge with thermal radiation

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