Effect of thermal radiation on MHD micropolar Carreau nanofluid with viscous dissipation, Joule heating and internal heating

Atif, S. M.; Hussain, Shafqat; Sagheer, Muhammad

doi:10.24200/sci.2019.51653.2294

Cited by 13 publications

(11 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Their analytical solution shows that the Weissenberg number has a great effect on the fluid flow. Atif et al 10 examined the MHD micropolar Carreau nanoliquid flow with viscous dissipation and thermal radiation effect. Idowu and Falodun 11 explored non‐Newtonian liquids motion through a vertical penetrable plate with Soret–Dufour variable viscosity as well as thermal conductivity.…”

Section: Introductionmentioning

confidence: 99%

Soret, viscous dissipation, and thermal radiation effects on MHD free convective flow of Williamson liquid with variable viscosity and thermal conductivity

Onwubuoya

Dada

2021

Heat Trans

View full text Add to dashboard Cite

The flow model of heat and mass transport of a Williamson liquid through a porous stretching sheet with radiation, viscous dissipation, Soret effect, and chemical reaction has been explored. The motion starts from the slot to the free stream. The present study is unique, because it examines the flow of a Williamson fluid under the influence of variable viscosity and thermal conductivity. The Williamson fluid term as added to the momentum and energy equation is considered in a nonlinear form as compared with other studies in literature. The flow model is a set of coupled highly nonlinear partial differential equations that are simplified and lead to coupled nonlinear total differential equations by employing sufficient similarity variables. The simplified equations are later solved by utilizing the spectral homotopy analysis method. Our experiment shows that the injected variable viscosity, together with thermal conductivity, has a great impact on the fluid profiles. An increase in the Williamson parameter (β) leads to a decrease in the thickness of the hydrodynamic thermal layer. Our numerical calculations were compared with earlier published work, and they were discovered to be correct.

show abstract

Section: Introductionmentioning

confidence: 99%

Soret, viscous dissipation, and thermal radiation effects on MHD free convective flow of Williamson liquid with variable viscosity and thermal conductivity

Onwubuoya

Dada

2021

Heat Trans

View full text Add to dashboard Cite

show abstract

“…Optimization of thermal systems plays an important role in decreasing the problems about the air pollution and manufacturing cost [2,3]. Heat transfer enhancement in thermal systems is divided into active and passive methods [4,5]. Minichannels and microchannels as passive methods provide high cooling rates because of their remarkable heat transfer surface [6,7].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of heat transfer and pressure drop in a minichannel heat sink using Al2O3 and TiO2–water nanofluids

Moghanlou

Noorzadeh

Ataei

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

Nanofluids are known as a new generation of coolants. These fluids have attracted more attention in cooling applications, like electrical, optical, and solar systems recently, because of their unique rheological and thermal properties. In the present study, to evaluate the thermal behavior of the nanofluids, Al 2 O 3 and TiO 2 nanoparticles with the size of 20 nm were completely dispersed in distilled water and circulated in a minichannel heat sink. The heat sink consists of 10 minichannels that have designed to cool thermoelectric generators. The results showed that by only dispersion of 0.5 vol% Al 2 O 3 nanoparticles a 9.30% heat transfer enhancement observed. It was also obtained that the TiO 2-water sample showed a 4.56% heat transfer enhancement. The highest efficiency was obtained by utilizing the Al 2 O 3-water nanofluid. This was attributed to the higher thermal conductivity of Al 2 O 3 compared to TiO 2. Using both nanofluids resulted in higher pressure drop compared to the based fluid. At the Reynolds number of 1000, the pressure drop for Al 2 O 3 and TiO 2 nanofluids increased as 3.33% and 3.88%, respectively. The increased pressure drop was attributed to higher density and viscosity of nanofluids. The classical theories are not available to justify the remarkable heat transfer enhancement obtained by adding a negligible amount of mentioned nanoparticles. It seems that new mechanisms such as the random motion of nanoparticles and generated microconvections by nanoparticle motion in the base fluid are responsible for considerable heat transfer enhancement.

show abstract

“…Wakif et al [11] numerically analyzed the contribution of thermal radiation in time-dependent magneto-hydrodynamic (MHD) free convection couette flow of Cu-water with the help of single and two-phase models. Atif et al [12] conducted a study to observe the impacts of Joule heating, viscous dissipation, internal heating and thermal radiation on MHD micro-polar Carreau nanofluid. Effects of the slip condition and magnetic field on natural convection in a vertical channel with water/alumina nanofluid were investigated by Malvandi et al [13].…”

Section: Introductionmentioning

confidence: 99%

Unsteady Radiative Natural Convective MHD Nanofluid Flow Past a Porous Moving Vertical Plate with Heat Source/Sink

et al. 2020

View full text Add to dashboard Cite

In this research article, we investigated a comprehensive analysis of time-dependent free convection electrically and thermally conducted water-based nanofluid flow containing Copper and Titanium oxide (Cu and TiO 2 ) past a moving porous vertical plate. A uniform transverse magnetic field is imposed perpendicular to the flow direction. Thermal radiation and heat sink terms are included in the energy equation. The governing equations of this flow consist of partial differential equations along with some initial and boundary conditions. The solution method of these flow interpreting equations comprised of two parts. Firstly, principal equations of flow are symmetrically transformed to a set of nonlinear coupled dimensionless partial differential equations using convenient dimensionless parameters. Secondly, the Laplace transformation technique is applied to those non-dimensional equations to get the close form exact solutions. The control of momentum and heat profile with respect to different associated parameters is analyzed thoroughly with the help of graphs. Fluid accelerates with increasing Grashof number (Gr) and porosity parameter (K), while increasing values of heat sink parameter (Q) and Prandtl number (Pr) drop the thermal profile. Moreover, velocity and thermal profile comparison for Cu and TiO 2 -based nanofluids is graphed.

show abstract

Effect of thermal radiation on MHD micropolar Carreau nanofluid with viscous dissipation, Joule heating and internal heating

Cited by 13 publications

References 37 publications

Soret, viscous dissipation, and thermal radiation effects on MHD free convective flow of Williamson liquid with variable viscosity and thermal conductivity

Soret, viscous dissipation, and thermal radiation effects on MHD free convective flow of Williamson liquid with variable viscosity and thermal conductivity

Experimental investigation of heat transfer and pressure drop in a minichannel heat sink using Al2O3 and TiO2–water nanofluids

Unsteady Radiative Natural Convective MHD Nanofluid Flow Past a Porous Moving Vertical Plate with Heat Source/Sink

Contact Info

Product

Resources

About