Heat and mass transfer analysis of MHD couple stress fluid flow through expanding or contracting porous pipe with cross diffusion effects

Raju, Adigoppula; Ojjela, Odelu; Kumar, N. Naresh; Munjam, Shankar Rao

doi:10.1007/s40435-019-00545-6

Cited by 5 publications

(3 citation statements)

References 22 publications

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“…Email: nppaimit@yahoo.co.in disks. In 2019 Naresh kumar and his associates (Raju et al (2019)) studied the heat and mass transfer analysis of MHD couple stress fluid flow through contracting or expanding porous pipes. P Sibanda (Sibanda and Makinde (2012)) and his associates investigate the hydromagnetic steady flow and heat transfer characteristics of an incompressible viscous electrically conducting fluid past a rotating disk in a porous medium with ohmic heating, Hall current and viscous dissipation .…”

Section: Introductionmentioning

confidence: 99%

“…P Sibanda (Sibanda and Makinde (2012)) and his associates investigate the hydromagnetic steady flow and heat transfer characteristics of an incompressible viscous electrically conducting fluid past a rotating disk in a porous medium with ohmic heating, Hall current and viscous dissipation . Many authors studied this type of models under different conditions and these articles can be found in (Raju et al (2019), Nazir andMahmood (2011), Osalusi et al (2007), Gu et al (2020), Abed et al (2020), Tufail et al (2020, Gadamsetty et al (2020)).…”

Section: Introductionmentioning

confidence: 99%

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Analysis of MHD Flow and Heat Transfer of Laminar Flow Between Porous Disks

Pai¹,

Kumar²,

Devaki³

2021

Frontiers in Heat and Mass Transfer

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A study is carried out for the two dimensional laminar flow of conducting fluid in presence of magnetic field. The governing non-linear equations of motion are transformed in to dimensionaless form. A solution is obtained by homotopy perturbation method and it is valid for moderately large Reynolds numbers for injection at the wall. Also an efficient algorithm based finite difference scheme is developed to solve the reduced coupled ordinary differential equations with necessary boundary conditions. The effects of Reynolds number, the magnetic parameter and the pradantle number on flow velocity and tempratare distribution is analysed by both the methods and results agree well with previous work for special cases. It is observed that overall effect of magnetic field is same as Hartmann flow. Further the analysis predicts that the heat transfer at the surface of the disks increases with increase in Reynolds number, magnetic parameter and Prandle number. The shear stress at the wall decreases with increase in injection, whearas increase with increase in magnetic parameter. The study of such phenomenon is beneficial in the industry for thermal control in polymeric processing.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of MHD Flow and Heat Transfer of Laminar Flow Between Porous Disks

Pai¹,

Kumar²,

Devaki³

2021

Frontiers in Heat and Mass Transfer

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“…Rani et al 24 investigated the double‐diffusive boundary layer flow through the vertical cylinder. Raju et al 25 studied the effect of cross diffusions on the flow of the CS fluid through a porous tube, which is performed electrically. They noticed that the variation in fluid's velocity and temperature distribution concerning the magnetic force are opposite to each other.…”

Section: Introductionmentioning

confidence: 99%

Investigating the magnetohydrodynamic flow of a couple stress dusty fluid along a stretching sheet in the presence of viscous dissipation and suction

Gajjela

Nandkeolyar

2021

Heat Trans

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A computational study for investigating the flow and heat transfer phenomena in the unsteady magnetohydrodynamic couple stress dusty fluid flow over a linearly stretching porous surface in the presence of viscous dissipation effects is presented. The governing equations, in nondimensional form, are tackled by the exploitation of the standard spectral quasi‐linearization methodology. The estimations of flow rate and temperature profiles are pictured diagrammatically. In contrast, the local skin friction and heat transfer rates are placed in tabular form for various values of thermofluidic parameters. The numerical results of a current investigation are compared with previously available results and located to be sensible agreement as shown in Tables 1 and 2. It is analyzed that by elevating the specific heat parameter and couple stress parameter, the temperature profile and the resulting thickness of the boundary layer are depressed. In comparison, an increase in thermal boundary layer thickness and a decrease in thickness of the momentum boundary layer were found with the rising magnetic parameter values.

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Impacts of variable thermal conductivity and mixed convective stagnation‐point flow in a couple stress nanofluid with viscous heating and heat source

Gajjela

Garvandha

2020

Heat Trans

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The current study examines mixed (combined) convection stagnation‐point couple stress nanofluid over a stretched cylinder of variable thermal conductivity in the presence of viscous dissipation and internal heat source. The basic governing partial differential equations have been converted to coupled nonlinear differential equations by using adequate similarity transformations. By applying semi‐analytic technique (BVPh2.0), the equivalent ordinary differential equations are successfully solved and validated with a bvp4c solver. Graphs are presented to study the impact of various parameters on axial velocity, temperature, and volumetric nanofluid concentration profiles. The coefficient of skin friction (quantifying resistance) and the rate of heat and mass transfer on the surface due to flow variables are computed and explained. The axial velocity and momentum thickness are decreased with increasing couple stress parameter, whereas the reverse trend is noted with mixed convection and buoyancy ratio parameters. The temperature distribution increases for increasing Brownian motion and thermal conductivity parameter, whereas it decreases for increasing stagnation parameter.

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Heat and mass transfer analysis of MHD couple stress fluid flow through expanding or contracting porous pipe with cross diffusion effects

Cited by 5 publications

References 22 publications

Analysis of MHD Flow and Heat Transfer of Laminar Flow Between Porous Disks

Analysis of MHD Flow and Heat Transfer of Laminar Flow Between Porous Disks

Investigating the magnetohydrodynamic flow of a couple stress dusty fluid along a stretching sheet in the presence of viscous dissipation and suction

Impacts of variable thermal conductivity and mixed convective stagnation‐point flow in a couple stress nanofluid with viscous heating and heat source

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