Effects of temperature dependent viscosity and thermal conductivity on natural convection flow along a curved surface in the presence of exothermic catalytic chemical reaction

Abstract

The natural convection boundary layer flow of a viscous incompressible fluid with temperature dependent viscosity and thermal conductivity in the presence of exothermic catalytic chemical reaction along a curved surface has been investigated. The governing non dimensional form of equations is solved numerically by using finite difference scheme. The numerical results of velocity profile, temperature distribution and mass concentration as well as for skin friction, heat transfer rate and mass transfer rate are presented graphically and in tabular form for various values of dimensionless parameters those are generated in flow model during dimensionalization. From the obtained results, it is concluded that the exothermic catalytic chemical reactions is associated with temperature dependent viscosity and thermal conductivity. Further, it is concluded that the body shape parameter also plays an important quantitative role for change in velocity profile, temperature field and mass concentration behavior in the presence of exothermic catalytic chemical reaction.

Computational study of temperature and density perturbations on atmospheric dynamics

“…For extended spatial and temporal propagation, the research outlined above takes into account the constant transport coefficients, specific heat capacities, gas constant and gravity of the Earth. These properties of moist air, on the other hand, vary noticeably when temperature and density differences exist in the surface atmosphere even for a short time [18][19][20][21][22].…”

Recovery-Based Error Estimator for Natural Convection Equations Based on Defect-Correction Methods

“…In recent years, there has been continuous research on NC equations, such as in [ 8 , 10 , 11 , 12 , 13 ], which studied the natural convection of cavity-filled nanofluids. Ahmad [ 14 ] studied the effect of viscosity and thermal conductivity on natural convection in exothermic catalytic chemical reactions on curved surfaces, and in [ 10 , 15 , 16 , 17 , 18 , 19 ], Singh et al considered the effect of factors such as Lorentz force on natural convection.…”

Gyrotactic microorganisms bioconvection in combined convective magnetohydrodynamic Casson nanofluid flow over a vertically surfaced saturated porous media with variable viscosity

“…Kuznetsov et al 12,13 explored his results on the stability of small particles including with gyrotactic microorganisms in the layer of infinite extent and the study of the beginning of bioconvection in a horizontal layer, and Brownian and thermophoresis and chemical reaction effects of homogeneous and heterogeneous nanofluid have been proposed and investigated that an upper half surface of convective boundary layer flow along with variable thickness also thermal radiation and quadratic autocatalysis of a paraboloid revolution of bio convection nanofluid flow in MHD have been found by O. D. Makinde and Animasaun, 14,15 Nayak et al 16 developed and analyzed the multi‐slip flow of non‐Newtonian nanofluid including gyrotactic microorganisms with triple diffusive bioconvection and their numerical solutions. Recently, researchers have shown an interest in finding the results and exploring the characteristics of variable viscosity of fluids with different geometrical conditions, such as natural convection at an axisymmetric stagnation point, magnetic field effect of heat transfer with thermal radiation, and flow of a liquid along the surface with the inclusion of exothermic catalytic chemical effects 17–20 . A mathematical study of the MHD flow of the Cattaneo–Christov model with variable viscosity has been conducted by finite element analysis, and the impact of the concentration boundary layer, thermal, and gravitational forces with double stratification of mass flow and thermal transfer phenomena has also been done by Ali et al 21 Flux and an international heat generation of nonlinear thermal radiation impacts of nanofluid over a truncated conoid with a power‐law through porous medium have been analyzed by Huang and Yih, 22 Manjunatha et al 23 put effort to obtain results numerically by using Runge–Kutta (RK) method on thermal flow intensification in the boundary layer with natural convection of hybrid nanoliquids due to dependent viscosity.…”

“…Recently, researchers have shown an interest in finding the results and exploring the characteristics of variable viscosity of fluids with different geometrical conditions, such as natural convection at an axisymmetric stagnation point, magnetic field effect of heat transfer with thermal radiation, and flow of a liquid along the surface with the inclusion of exothermic catalytic chemical effects. [17][18][19][20] A mathematical study of the MHD flow of the Cattaneo-Christov model with variable viscosity has been conducted by finite element analysis, and the impact of the concentration boundary layer, thermal, and gravitational forces with double stratification of mass flow and thermal transfer phenomena has also been done by Ali et al 21 Flux and an international heat generation of nonlinear thermal radiation impacts of nanofluid over a truncated conoid with a power-law through porous medium have been analyzed by Huang and Yih, 22 Manjunatha et al 23 put effort to obtain results numerically by using Runge-Kutta (RK) method on thermal flow intensification in the boundary layer with natural convection of hybrid nanoliquids due to dependent viscosity. The combined impacts of electrically conducting nanofluid with thermal radiation, time-dependent viscosity, magnetic field over a radially stretching convectively and discussed with numerical validation and characteristics of a non-steady thermal source over stretching sheet nonparallel magnetohydrodynamic stagnation flow with radiative transfer over a wedge have been analyzed, obtained the results numerically, [24][25][26][27][28] the theoretical analysis of nanoliquid with magnetic effects, radiation over a stretched surface have been carried out by Makinde et.…”