Mixed convective flow of an Oldroyd-B nanofluid impinging over an unsteady bidirectional stretching surface with the significances of double stratification and chemical reaction

Ahmad, Iftikhar; Khurshid, Iqra; Faisal, Muhammad; Javed, Tariq; Abbas, Zaheer

doi:10.1007/s42452-020-03430-6

Cited by 14 publications

(3 citation statements)

References 48 publications

(54 reference statements)

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“…Zhang et al 14 analyzed the effects of magnetic field on heat transfer and flow of Oldroyd‐B nanofluid between two co‐axial cylinders. Recently many studies have also explored different characteristics of the Oldroyd‐B nanofluid 12,15–20 …”

Section: Introductionmentioning

confidence: 99%

Numerical study of activation energy and thermal radiation effects on Oldroyd‐B nanofluid flow using the Cattaneo–Christov double diffusion model over a convectively heated stretching sheet

2021

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This paper investigates a theoretical model of a mixed convective Oldroyd‐B nanofluid with thermal radiation and activation energy effects. A thorough analysis is done by employing the nonhomogeneous Buongiorno model in the presence of velocity slip and suction. The surface is porous in nature, and nanoparticle mass flux is maintained passively at the surface. The thermal and concentration equations are modeled with the Cattaneo–Christov theory of heat and mass flux, respectively. Proper transformations are utilized for the conversion of transport equations and boundary conditions. The similarity solution is obtained through a numerical approach by utilizing the Runge–Kutta–Fehlberg method and shooting technique. The vital outcomes of this study and the influence of controlling parameters on the flow field, temperature, and concentration profiles are discussed graphically and in a tabular manner. Furthermore, a detailed discussion is provided to explain the results physically. The velocity of the nanofluid increases when the porosity parameter is increased, and temperature decreases with increasing thermal relaxation parameter. The outcomes elucidate that the suction parameter, thermal radiation parameter, and thermal relaxation parameter are positively correlated with the heat transfer coefficient. The result of passive control of nanoparticles at the surface is that the Brownian motion parameter has no influence on the temperature of the Oldroyd‐B nanofluid flow and rate of heat transfer at the surface.

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Section: Introductionmentioning

confidence: 99%

Numerical study of activation energy and thermal radiation effects on Oldroyd‐B nanofluid flow using the Cattaneo–Christov double diffusion model over a convectively heated stretching sheet

2021

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“…With the functionality of similarity transformations, transport equations have been converted into one parameter family of solvable equations based on the physical domain. Analytical analysis of the mathematical model has been presented by following the procedure of homotopy analysis method [37][38][39][40][41][42][43][44]. Some more solution techniques (Keller-Box method, Lie group analysis, etc.)…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Mixed Convective Bidirectional Dynamics of Double Stratified Radiative Oldroyd-B Nanofluid Flow with Heat Source/Sink and Higher-Order Chemical Reaction

Ahmad

Faisal

Loganathan

et al. 2022

Mathematical Problems in Engineering

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Little is known in the literature about the concept of nonuniform heat source/sink and higher-order chemical reaction for the dynamics of Oldroyd-B nanoparticles. Therefore, the present article addresses the nonuniform heat source/sink and higher-order chemical reaction features in nonlinear mixed convection bidirectional MHD dynamics of Oldroyd-B nanoparticles with thermal radiation aspects through porous space. Stratification effects for both the temperature and concentration setups are also used in the mathematical model with the significance of random movement and thermodiffusion of nanoparticles. Shape-preserving transformations have been employed to convert the transport equations into solvable forms. An innovative analytical tactic, namely, homotopy analysis method, has been adopted to find the solution of the modeled problem. Behaviors of pertinent parameters on thermal and concentration profiles have been discussed through various graphs. Inspection of heat/mass transport against appropriate varieties of pertinent parameters has been made and explained physically. Thermal profile is augmented with the higher estimations of space and temperature-dependent heat source/sink links. Concentration profile is diminished with the augmentation of higher-order chemical reaction parameter. Sherwood number is improved with the estimation of 0 ≤ β t ≤ 100 and is reduced with the growth of 0 ≤ β c ≤ 100 . Nusselt number is declined with the upgraded amounts of 0 ≤ N b ≤ 3 and 0 ≤ N t ≤ 5 .

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“…Irfan and Farooq 16 analyzed the magnetohydrodynamics (MHD) heat transfer of nanofluid flow over an exponentially stretching surface, including varying fluid characteristics. Other related studies scrutinizing nanofluids can be inspected in the following attempts 17–26 …”

Section: Introductionmentioning

confidence: 99%

MHD Eyring–Powell nanofluid past over an unsteady exponentially stretching surface with entropy generation and thermal radiation

Agrawal

Kaswan

2021

Heat Trans

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This study's primary objective is to analyze the entropy generation in an unsteady magnetohydrodynamics (MHD) Eyring–Powell nanofluid flow. A surface that stretched out exponentially induced flow. The influences of thermal radiation, thermophoresis, and Brownian motion are also taken into consideration. The mathematical formulation for the transport of mass, momentum, and heat described by a set of partial differential equation is used, which is then interpreted by embracing the homotopy analysis method and with a fourth‐order precision program (bvp4c). Graphical results display the consequences of numerous parameters on velocity, temperature, concentration, and entropy generation. Moreover, escalating amounts of the magnetic parameter, thermal radiation parameter, Reynolds number, and Brinkman number improve the entropy profile of the nanofluid. The rate of heat flux and the mass flux conspicuously improves for non‐Newtonian fluid as compared to Newtonian fluid.

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Mixed convective flow of an Oldroyd-B nanofluid impinging over an unsteady bidirectional stretching surface with the significances of double stratification and chemical reaction

Cited by 14 publications

References 48 publications

Numerical study of activation energy and thermal radiation effects on Oldroyd‐B nanofluid flow using the Cattaneo–Christov double diffusion model over a convectively heated stretching sheet

Numerical study of activation energy and thermal radiation effects on Oldroyd‐B nanofluid flow using the Cattaneo–Christov double diffusion model over a convectively heated stretching sheet

Nonlinear Mixed Convective Bidirectional Dynamics of Double Stratified Radiative Oldroyd-B Nanofluid Flow with Heat Source/Sink and Higher-Order Chemical Reaction

MHD Eyring–Powell nanofluid past over an unsteady exponentially stretching surface with entropy generation and thermal radiation

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