Natural convection on heat transfer flow of non-newtonian second grade fluid over horizontal circular cylinder with thermal radiation

Prasad, V. Ramachandra; Bhuvanavijaya, R.; Bandaru, Mallikarjuna

doi:10.3329/jname.v13i1.20703

Cited by 7 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Investigations into dissipative impact have been looked into by Zokri et al [10]; Mohammed et al [11]; Prasad et al [12]; Chowdhury et al [13]; Akinbobola and Okoya [14]. The following authors, Molla et al [15]; Zainuddin et al [16]; Zainuddin et al [17]; Makanda et al [18]; Adeniyan et al [19]; Prasad et al [20]; Roy and Gorla [21]; Prakash et al [22]; examined the impact of radiation while studies on non-linear Boussinesq approximation have been investigated under various conditions and geometries different from a cylinder by Mahanthesh et al [23]; Rakesh and Shilpa [24]; Goren [25]; Thriveni and Mahanthesh [26]; Vajravelu and Sastri [27]; Okoya et al [28]; Sinha [29]; Mahanthesh et al [30]. The impact of internal heat generation has been documented by the following authors: Azim and Chowdhury [31]; Azim [32]; Kunnegowda et al [33]; Kasim et al [34]; Molla et al [35]; Opadiran [36]; Mythili et al [37]; Mythili and Sivaraj [38].…”

Section: Introductionmentioning

confidence: 99%

Influence of Non-Linear Radiation and Viscous Dissipation on the Convective Fluid Flow with Variable Viscosity and Quadratic Boussinesq Approximation across a Cylinder with Uniform Heat Flux at the Wall

Opadiran

Okoya

2022

DDF

View full text Add to dashboard Cite

This study examines the effect of non-linear radiation and viscous dissipation on the convective Newtonian fluid flow with temperature-dependent viscosity and the quadratic Boussinesq approximation around a cylinder with uniform heat flux at the wall. The coupled partial differential equations of the problem are non-dimensionalized with appropriate variables and reduced via stream functions. Regular perturbation technique is employed to transform the nonlinear coupled partial differential equations into a system of nonlinear coupled ordinary differential equations solved using the Trapezoidal method. A surge in the radiative parameter was found to heighten the fluid’s velocity and temperature, while an increase in the dissipative effect enhances the skin friction and heat transfer distributions. The limiting cases of the model considered and the results obtained in this study are consistent with those in the literature.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of Non-Linear Radiation and Viscous Dissipation on the Convective Fluid Flow with Variable Viscosity and Quadratic Boussinesq Approximation across a Cylinder with Uniform Heat Flux at the Wall

Opadiran

Okoya

2022

DDF

View full text Add to dashboard Cite

show abstract

“…They have noted that the effect of elasticity on Nusselt number depends on the value of Weissenberg number. Also, a set of studies [7][8][9][10] have been done for viscoelastic second-grade fluids in different geometries. It has been noticed that the elasticity is considered as a resistance force, which trends to depreciate heat transfer within the flow and decelerate the fluid motion.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Natural Convection for Generalized Second-Grade Fluids Confined in a Square Cavity Subjected to Horizontal Heat Flux

Daghab¹,

Kaddiri²,

Raghay³

et al. 2021

IJHT

View full text Add to dashboard Cite

Two-dimensional steady laminar natural convection of a viscoelastic fluid represented by generalized second-grade fluid model in a square enclosure is studied. The cavity is submitted at its vertical sides to a uniform density of heat flux while the horizontal walls are insulated, without slipping conditions at all the solid boundaries. The governing conservation and constitutive equations with the corresponding boundary conditions are solved by finite volume method in a collocated grid system. The contributions of shear rate dependent and elastic characteristics of the viscoelastic fluid are investigated on momentum and heat transport. The effects of elastic number (E) in the range 0 - 1 on heat transfer and fluid motion are interpreted for a power-law index (n) in the range 1.4 - 0.6 and nominal values of Rayleigh number (Ra) range of 103 to 105.

show abstract

“…Several researchers have studied this classical model problem under constant thermophysical properties (that is, constant viscosity and thermal conductivity with negligible heat generation) in different contexts. Some of the important contributions to these model problems where the flow is two-dimensional are listed in Prasad et al, 2014, Zainuddin et al, 2015, Mohamed et al, 2016, Prasad et al, 2016, Zokri et al, 2018, Rath and Dah, 2020. Appreciable research has been carried out in the modeling and simulation of problems that describe the flow of Newtonian fluids under both linear heat generation and Boussinesq approximation in several geometries.…”

Section: Introductionmentioning

confidence: 99%

Importance of convective boundary layer flows with inhomogeneous material properties under linear and quadratic Boussinesq approximations around a horizontal cylinder

Opadiran

Okoya

2021

Heliyon

View full text Add to dashboard Cite

This study investigates boundary layer flows with inhomogeneous material properties driven by natural convection using linear and quadratic Boussinesq approximations around a horizontal cylinder. The cylinder's surface was kept at a uniform temperature. The governing equations for the setup were formulated from the principles of mass continuity, momentum and energy under realistic assumptions. Four coupled partial differential equations were obtained and reduced using stream function to two. Using perturbation techniques with one spatial coordinate as the perturbation parameter, the partial differential equations were further reduced to a set of nonlinear coupled ordinary differential equations. The fluid's velocity, as well as the temperature distributions, were computed and analyzed using the Maple 17 platform. The results obtained were consistent with existing results from reference literature. Further analysis of the embedded flow parameters was also carried out and analyzed with relevant tables and graphical illustrations for the linear and quadratic Boussinesq approximations. The results of the study show a fundamental difference between the linear and quadratic Boussinesq approximation alongside an interconnection between constant and variable thermophysical properties.

show abstract

Natural convection on heat transfer flow of non-newtonian second grade fluid over horizontal circular cylinder with thermal radiation

Abstract: Abstract:This article numerically studies for multi -

Cited by 7 publications

References 19 publications

Influence of Non-Linear Radiation and Viscous Dissipation on the Convective Fluid Flow with Variable Viscosity and Quadratic Boussinesq Approximation across a Cylinder with Uniform Heat Flux at the Wall

Influence of Non-Linear Radiation and Viscous Dissipation on the Convective Fluid Flow with Variable Viscosity and Quadratic Boussinesq Approximation across a Cylinder with Uniform Heat Flux at the Wall

Numerical Study of Natural Convection for Generalized Second-Grade Fluids Confined in a Square Cavity Subjected to Horizontal Heat Flux

Importance of convective boundary layer flows with inhomogeneous material properties under linear and quadratic Boussinesq approximations around a horizontal cylinder

Contact Info

Product

Resources

About