Impacts of lorentz force and chemical reaction on peristaltic transport of Jeffrey fluid in a penetrable channel with injection/suction at walls

Abbas, Zaheer; Rafiq, Muhammad Yousuf; Hasnain, Jafar; Umer, Hubba

doi:10.1016/j.aej.2020.10.035

Cited by 50 publications

(16 citation statements)

References 39 publications

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“…Brandi et al [34] investigated this model's stability of the problem between two parallel plates. Chemical reaction effect on the Jeffery fluid with Lorentz force was recently studied by Abbas et al [35] in peristaltic channel flow. Hayat et al [36] in their study used Oldroyd-B nanofluid flow with impacts of double stratified radiation and nonlinear convection.…”

Section: Introductionmentioning

confidence: 98%

Variation of coating thickness in blade coating process of an upper-convected Jeffery’s fluid model

Abbas

Khaliq

2021

Iran Polym J

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The coating process is significant in terms of its practical applications in the field of paint and electronics industries. The coating process offers a protective layer in paints; however, it stores information in electronics industries. Current study gives insight on the blade coating analysis by passing an upper convected Jeffery's material through the narrow gap between the moving substrate and a fixed blade. The basic flow expressions were simplified by utilizing lubrication approximation theory, and then solved using the perturbation analysis and numerical shooting technique. The study discussed the effects of material parameters in both cases of plane and exponential coaters. The variations of Weissenberg number, viscosities ratio and normalized coating thickness on the maximum pressure, pressure gradient, coating thickness, pressure, and load are presented through graphs and in a tabular manner. In addition, the perturbation results were validated by comparing with the numerical outcomes and found an excellent agreement. It is noted that increasing both the Weissenberg number and viscosities ratio resulted in reduced coating thickness and increased blade load, hence were the controlling parameters, as they certified the coating quality and life of the substrate. Besides, the parameters had significant impacts on the velocity and pressure profiles. In addition, maximum pressure was directly proportional to the Weissenberg number and viscosities ratio.

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Section: Introductionmentioning

confidence: 98%

Variation of coating thickness in blade coating process of an upper-convected Jeffery’s fluid model

Abbas

Khaliq

2021

Iran Polym J

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“…The heat absorption or generation within the body has various applications such as nuclear reactors, chemical processing, electrical conductors, refrigeration, etc. Some investigations about heat source or sink in the flow of non-Newtonian fluids can be seen in references (Mamatha et al , 2017; Kumar et al , 2017; Lu et al , 2019; Rafiq et al , 2020; Bilal and Ashbar, 2020; Asghar et al , 2020; Asghar et al , 2020; Bilal and Urva, 2020; Bilal and Nazeer, 2020; Abbas et al 2020a, b, c; Abbas et al , 2021). Gireesha et al (2018) have analyzed an Oldroyd-B nanofluid flow with nonlinear convective heat and mass transfer over a stretching sheet in the presence of a uniform heat source/sink.…”

Section: Introductionmentioning

confidence: 99%

Delineating impacts of non-uniform wall temperature and concentration on time-dependent radiation-convection of Casson fluid under magnetic field and chemical reaction

Das

Banu

Jana

2021

WJE

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Purpose In various kinds of materials processes, heat and mass transfer control in nuclear phenomena, constructing buildings, turbines and electronic circuits, etc., there are numerous problems that cannot be enlightened by uniform wall temperature. To explore such physical phenomena researchers incorporate non-uniform or ramped temperature conditions at the boundary, the purpose of this paper is to achieve the closed-form solution of a time-dependent magnetohydrodynamic (MHD) boundary layer flow with heat and mass transfer of an electrically conducting non-Newtonian Casson fluid toward an infinite vertical plate subject to the ramped temperature and concentration (RTC). The consequences of chemical reaction in the mass equation and thermal radiation in the energy equation are encompassed in this analysis. The flow regime manifests with pertinent physical impacts of the magnetic field, thermal radiation, chemical reaction and heat generation/absorption. A first-order chemical reaction that is proportional to the concentration itself directly is assumed. The Rosseland approximation is adopted to describe the radiative heat flux in the energy equation. Design/methodology/approach The problem is formulated in terms of partial differential equations with the appropriate physical initial and boundary conditions. To make the governing equations dimensionless, some suitable non-dimensional variables are introduced. The resulting non-dimensional equations are solved analytically by applying the Laplace transform method. The mathematical expressions for skin friction, Nusselt number and Sherwood number are calculated and expressed in closed form. Impacts of various associated physical parameters on the pertinent flow quantities, namely, velocity, temperature and concentration profiles, skin friction, Nusselt number and Sherwood number, are demonstrated and analyzed via graphs and tables. Findings Graphical analysis reveals that the boundary layer flow and heat and mass transfer attributes are significantly varied for the embedded physical parameters in the case of constant temperature and concentration (CTC) as compared to RTC. It is worthy to note that the fluid velocity is high with CTC and lower for RTC. Also, the fluid velocity declines with the augmentation of the magnetic parameter. Moreover, growth in thermal radiation leads to a declination in the temperature profile. Practical implications The proposed model has relevance in numerous engineering and technical procedures including industries related to polymers, area of chemical productions, nuclear energy, electronics and aerodynamics. Encouraged by such applications, the present work is undertaken. Originality/value Literature review unveils that sundry studies have been carried out in the presence of uniform wall temperature. Few studies have been conducted by considering non-uniform or ramped wall temperature and concentration. The authors are focused on an analytical investigation of an unsteady MHD boundary layer flow with heat and mass transfer of non-Newtonian Casson fluid past a moving plate subject to the RTC at the plate. Based on the authors’ knowledge, the present study has, so far, not appeared in scientific communications. Obtained analytical solutions are verified by considering particular cases of the published works.

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“…The peristaltic process of electrically conducting blood‐based nanomaterial comprising magnetite nanoparticles in a uniform wavy tube was reported by Ashraf et al 8 Recently, Alsaedi et al 9 had developed the concept of hall current for the peristaltic activity of nanomaterial in a channel having complaint walls. Researchers have made few latest attempts in this direction in the surveys 10–14 …”

Section: Introductionmentioning

confidence: 99%

Analysis of heat and mass transfer phenomena in peristaltic transportation of hyperbolic tangent fluid in tapered channel

Abbas

Rafiq

2021

Asia-Pacific J Chem Eng

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The mathematical and theoretical impacts of heat and mass transportation on the peristaltic process of electrically conducting hyperbolic tangent liquid in an asymmetric tapered channel are considered. Flow in porous space is categorized through modified Darcy's law. The mechanism of heat transfer is also examined in conjunction with viscous dissipation. Both Soret and Dufour impacts are also included to study mass flux generated by a temperature gradient and energy flux affected by concentration differences. Lubrication approximation theory is implemented to simplify the two‐dimensional flow equations of hyperbolic tangent liquid using a Cartesian coordinate system. The significant role of numerous implicated parameters on the flow phenomenon is summarized numerically via graphs. The present outcome reveals that liquid velocity declines with an enhancement of Darcy's number, whereas its diminutions with an increase of Weissenberg's number. Moreover, the temperature of fluid enhances with a boost in Dufour number.

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Impacts of lorentz force and chemical reaction on peristaltic transport of Jeffrey fluid in a penetrable channel with injection/suction at walls

Cited by 50 publications

References 39 publications

Variation of coating thickness in blade coating process of an upper-convected Jeffery’s fluid model

Variation of coating thickness in blade coating process of an upper-convected Jeffery’s fluid model

Delineating impacts of non-uniform wall temperature and concentration on time-dependent radiation-convection of Casson fluid under magnetic field and chemical reaction

Analysis of heat and mass transfer phenomena in peristaltic transportation of hyperbolic tangent fluid in tapered channel

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