Heat transfer analysis of MHD flow due to unsteady bi-directional stretching sheet through porous space

Ahmad, Iftikhar; Ahmad, Manzoor; Sajid, Muhammad

doi:10.2298/tsci140313114a

Cited by 12 publications

(7 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The power indices r and s decided how the temperature or the heat flux at the sheet varies in the , -plane. The stretching phenomenon in this direction has already studied by various authors Liu and Andersson (2008), Ahmad et al (2011), Ahmad et al (2014).…”

Section: Mathematical Formulationmentioning

confidence: 93%

“…Following Awais et al (2014) and Ahmad et al (2014), we introduce the following dimensionless variables…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…Recently Awais et al (2014) studied time dependent boundary layer flow of a Maxwell fluid over an unsteady bidirectional stretching sheet. Very recently Ahmad et al (2014) discussed heat transfer analysis of MHD flow due to unsteady bidirectional stretching sheet through porous space. To the best of our knowledge, the analysis for the three-dimensional unsteady flow of an Oldroyd-B fluid over an unsteady bidirectional stretching surface with heat transfer has not yet been reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flow of an Oldroyd-B Fluid past an Unsteady Bidirectional Stretching Sheet with Constant Temperature and Constant Heat Flux

Ahmad¹,

Ahmad²,

Sajid³

et al. 2016

JAFM

Self Cite

View full text Add to dashboard Cite

This article describes the time dependent flow of a non-Newtonian fluid with heat transfer. We consider three dimensional unsteady flow and heat transfer of an Oldroyd-B fluid for constant temperature (CT) and constant heat flux (CH) cases over an unsteady bidirectional stretching surface. Homotopic solutions of the governing boundary value problems have been computed. Convergence for both velocity and temperature profiles is explored. The effects of emerging parameters on the velocity and temperature fields are investigated with the help of graphs and tabular data. It is observed that due to unsteadiness temperature in both the constant temperature and constant heat flux cases decrease significantly. Comparison of obtained and previously published results is found in excellent agreement.

show abstract

Section: Mathematical Formulationmentioning

confidence: 93%

“…Following Awais et al (2014) and Ahmad et al (2014), we introduce the following dimensionless variables…”

Section: Mathematical Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Flow of an Oldroyd-B Fluid past an Unsteady Bidirectional Stretching Sheet with Constant Temperature and Constant Heat Flux

Ahmad¹,

Ahmad²,

Sajid³

et al. 2016

JAFM

Self Cite

View full text Add to dashboard Cite

show abstract

“…32 Recently researchers have also exploited the effect of hybrid nanofluids over the stretching sheet to enhance the heat transfer. 33–39 Acharaya and Mabood 40 worked on the radiative Fe 3 O 4 -graphene hybrid nanofluid flow over permeable bended structure and found that hybrid nanofluid exhibits larger velocity than conventional nanofluid. The revolving hybrid nanosuspension flow (Alumina-copper nanoparticle with water as base fluid) in microchannel within solar unit has been studied by Acharaya.…”

Section: Introductionmentioning

confidence: 99%

Implication of geometrical configuration on heat transfer enhancement in converging minichannel using nanofluid by two phase mixture model: A numerical analysis

Faizan

Pati

Randive

2020

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

In the present study laminar forced convective flow of nanofluid through a converging minichannel is investigated numerically by employing two phase mixture model. The heat transfer enhancement and the corresponding pressure drop are analyzed for the following range of parameters: Reynolds number (700 ≤ Re ≤ 1650), particle volume concentration (0% ≤ ϕ ≤ 4%) and converging angle (θ = 0.029°, 0.043° and 0.05°). The results indicate that there is a considerable increase in pressure drop coupled with enhancement in heat transfer rate with particle loading due to the improvement in the thermal properties of the resulting mixture. The pressure drop in the converging channel increases with the converging angle. The pressure drop augments as high as 2 times by advancing the particle loading from 0% to 4%. The wall temperature decreases appreciably by 34 K and heat transfer coefficient is enhanced by as high as 98% from Re = 700, ϕ = 0% and straight channel to Re =1650, Hout = 2.75mm and ϕ = 4%. The enhancement in heat transfer and corresponding increase in pressure drop as compared to equivalent straight channel is presented by the performance factor, which increases with decrease in converging angle. There is a significant concern of the pumping power with increase in converging angle, volume fraction and Reynolds number.

show abstract

“…Such investigations were also carried out by Awais et al [38] and obtained analytical solutions. Recently, Ahmad et al [39] address the unsteady magnetohydrodynamic flow with heat transfer through porous space of a viscous fluid due to stretching sheet. Later, same phenomenon was used by Ahmad et al [40,41] for non-Newtonian Maxwell and Oldroyd-B fluid.…”

Section: Introductionmentioning

confidence: 99%

Time-dependent 3D flow of Maxwell nanofluid due to an unsteady stretching surface through porous space

Ahmad

Taj

Abbasi

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

In the present paper, we investigated unsteady three-dimensional flow of an incompressible magneto Maxwell nanomaterial in the porous medium. The cause of flow is unsteady stretching of sheet in transverse lateral directions taking zero mass flux of nanoparticles. The developed system of partial differential equations is transformed into nonlinear ordinary differential equations by similarity variables, and the obtained system is solved for dimensionless temperature and nanoparticles concentration by homotopy analysis method. The behavior of physical parameters on the temperature and nanoparticles concentrations is examined through graphs and tabular data. The temperature distribution at the surface is also computed and analyzed and noticed that both the temperature and nanomaterial are reduced for higher values of unsteadiness parameter.

show abstract

Heat transfer analysis of MHD flow due to unsteady bi-directional stretching sheet through porous space

Cited by 12 publications

References 44 publications

Flow of an Oldroyd-B Fluid past an Unsteady Bidirectional Stretching Sheet with Constant Temperature and Constant Heat Flux

Flow of an Oldroyd-B Fluid past an Unsteady Bidirectional Stretching Sheet with Constant Temperature and Constant Heat Flux

Implication of geometrical configuration on heat transfer enhancement in converging minichannel using nanofluid by two phase mixture model: A numerical analysis

Time-dependent 3D flow of Maxwell nanofluid due to an unsteady stretching surface through porous space

Contact Info

Product

Resources

About