Numerical simulation for impact of Coulomb force on nanofluid heat transfer in a porous enclosure in presence of thermal radiation

The flow of hybrid nanoparticles with significant physical parameters with different base fluids in the presence of Biot number, velocity slip, and MHD effects has not been explored so far, particularly for a circular cylinder. Therefore, the current report is presented to offer a numerical solution for hybrid nanoparticles with base fluids (water and ethylene glycerol) via a circular cylinder. The physical situation is interpreted in terms of partial differential equations and is converted into ordinary differential equations after applying the similarity transformation. The results are presented in both tabular and graphical forms. The impact of physical parameters on velocity distribution is examined through graphs. The comparative results of hybrid nanoparticles for distinct base fluids as ethylene glycol and water are proposed and the hybrid nanoparticles with base fluid water seems to be greater than that of the hybrid nanoparticles with base fluid EG. The temperature profile of hybrid nanoparticles is found to be a decreasing function with growth in velocity slip parameter γ but an opposite trend is noted in case of nanoparticles Φ 2 . The skin friction and Nusselt number augmented for the increase in magnetic field, velocity slip, and nanoparticle while it shows a decreasing trend toward thermal slip parameter. For the both cases, improvement in Biot number helps enhance the heat transfer constantly. K E Y W O R D S circular cylinder, hybrid nanoparticles, MHD, slip conditions, water and ethylene glycol

Section: Introductionmentioning

confidence: 99%

Stagnation flow of hybrid nanoparticles with MHD and slip effects

Abbas

Malik

Nadeem

2019

“…Kumar et al investigated irreversibility analysis of the three‐dimensional flow of carbon nanotubes due to nonlinear thermal radiation and quartic chemical reactions. Lately, diverse methods have been modified by various scholars to investigate the impact of the presence of nanoparticle on hydrodynamic and thermal analysis …”

Section: Introductionmentioning

confidence: 99%

Application of neural network on heat transfer enhancement of magnetohydrodynamic nanofluid

Gerdroodbary

2019

“…The problem has been set out using vorticity‐stream function formulation. Sheikholeslami and Rokni studied the nanofluid flow and heat transfer in a lid driven cavity saturated with porous media. Sheikholeslami and Seyednezhad numerically investigated the natural convection of nanofluid flow in a porous medium.…”

Section: Introductionmentioning

confidence: 99%

Natural convective flow of a chemically reacting fluid in an annulus

Roy

Hossain

Gorla

2019

We examine the heat transfer and flow properties induced by natural convection in an annulus between a square enclosure and a circular cylinder filled with a chemically reacting fluid. During the exothermic reaction process in the reacting fluid, there generates heat that induces natural convection in the annulus. The problem is developed defining the vorticity‐stream function. We solve it with the use of the finite difference method. The results show that two counter‐rotating vortices generate in each half about the vertical symmetry line through the center of the inner cylinder. The lower eddies of the inner vortices get closer and closer with the decrease of the aspect ratio and the increase of the Rayleigh number, Frank‐Kamenetskii number, buoyancy force parameter, and Lewis number. Besides this, the eyes of the outer vortices expose similar characteristics for increasing values of the Rayleigh number and buoyancy force parameter, and for decreasing values of the aspect ratio and the Lewis number. It is remarkable that the flow field and the Nusselt number demonstrate completely distinct characteristics for the Lewis number unity, the aspect ratio equal to 0.1, and in the absence of the buoyancy force parameter.