Nonlinear Rosseland thermal radiation and energy dissipation effects on entropy generation in CNTs suspended nanofluids flow over a thin needle

Abstract

In this paper, we examine thermal radiation effect of the nonlinear form on the dissipative nanofluids containing carbon nanotubes past a moving horizontal thin needle. We also perform a second law analysis with viscous dissipation. Single-wall carbon nanotube and multiple-wall carbon nanotube drop in H 2 O base fluid. Introducing suitable dimensionless variables, we reduce the governing equations to self-similar nonlinear differential equations. Matlab in-built boundary value solver bvp4c and shooting method are applied for the solution of the reduced set of self-similar differential equations. The numerical results thus obtained are compared, which agree well with respect to desired accuracy. Various graphs are depicted and illustrate qualitatively the influence of flow controlling parameters such as Eckert number, heating parameter, radiation parameters, nanoparticles solid volume fraction, and size of thin needle on entropy generation, temperature distribution, and Bejan number.

Natural nonlinear convection of dusty fluid in a suspension of multi-wall carbon nanotubes nanoparticles with different temperature of water and suction

“…The nonlinear differential equations (ODEs) (12)- (17) with the boundary constraints (18) are solved numerically R-K with shooting method. Initially, the set of nonlinear ODEs…”

“…The area of nanofluid attained greatly consideration owing to its great presentation in industrial, manufacturing and sciences like solar energy, biomedicine, chilling of electronic equipment, heat exchangers, shrinking and evaporating systems, innumerable chemical developments etc. Allured by these uses researchers [13][14][15][16][17][18][19][20] inspected the domain of nanofluids experimentally and numerically. Later on, Nagendramma et al [21] studied the magnetohydrodynamic double stratified hyperbolic fluid past a stretched permeable cylinder.…”

“…The non-linear coupled differential Eqs. (12)-(17) along with the constraints(18) are computed numerically for solutions using RK method. In this analysis the values of the material parameters are considered as = Q H = v = c = t = 0.5, = d = 0.05, Λ = 0.3, Ec = 0.1, M = 1, = 0.2, Δ = 0.5, = 1, 1 = 0.5, Λ 1 = 0.3, Λ 2 = 0.3, S = 0.1, Bi = 0.2, Le = 0.2, l = 0.2 .…”

Effect of SWCNTs and MWCNTs Maxwell MHD nanofluid flow between two stretchable rotating disks under convective boundary conditions

“…Xia et al deliberated the sway of four dissimilar surfactants on the constancy of MWCNTs with volume fraction (0.005%–0.2%) at subatmospheric pressure of 10 −3 Pa in a confined space and observed that the values of boiling heat transfer coefficient escalate with the rising volume fraction of nanoparticle values. Afridi et al has examined the steady flow of MWCNTs and SWCNTs with water as base fluid over a horizontally moving thin needle with nonlinear thermal radiation. Hussien et al numerically studied convective flow and heat transfer augmentation of GNPs/MWCNTs mixture nanofluid and minitube.…”

Irreversibility Analysis of Dissipative Fluid Flow Over A Curved Surface Stimulated by Variable Thermal Conductivity and Uniform Magnetic Field: Utilization of Generalized Differential Quadrature Method

“…After the pioneering work of Bejan [1], analysis of entropy generation in fluid flow problems are reported by many researchers. Recently, Afridi et al [2] studied the entropy generation of carbon nanotubes CNTs nanofluids in a flow over a thin needle by incorporating the effects of nonlinear thermal radiation and viscous dissipation. Makinde [3] reported the effects of variable viscosity on inherent irreversibility in a flow over a flat plate with Newtonian heating and uniform magnetic field.…”