FATUNMBI Ephesus Olusoji
@federalpolyilaro.edu.ng
LECTURER/MATHEMATICS AND STATISTICS
FEDERAL POLYTECHNIC, ILARO
RESEARCH, TEACHING, or OTHER INTERESTS
Applied Mathematics, Applied Mathematics
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
S.O. Salawu, T.A. Yusuf, A.M. Obalalu, and E.O. Fatunmbi
Elsevier BV
A.D. Ohaegbue, S.O. Salawu, R.A. Oderinu, E.O. Fatunmbi, and A.O. Akindele
Elsevier BV
S.O. Salawu, T.A. Yusuf, E.O. Fatunmbi, and A.M. Obalalu
Elsevier BV
Fakhraldeen Gamar, MD. Shamshuddin, M. Sunder Ram, S. O. Salawu, and E. O. Fatunmbi
Informa UK Limited
E.O. Fatunmbi, S.O. Salawu, and A.M. Obalalu
Elsevier BV
E.O. Fatunmbi, A.S. Oke, and S.O. Salawu
Elsevier BV
S.O. Salawu, A.M. Obalalu, E.O. Fatunmbi, A.B. Disu, and Nevzat Akkurt
Elsevier BV
Ephesus O. Fatunmbi, Aanuoluwapo J. Adigun, and Sulyman O. Salawu
Springer Science and Business Media LLC
Fuzhang Wang, E.O. Fatunmbi, A.T. Adeosun, S.O. Salawu, I.L. Animasaun, and I.E. Sarris
Elsevier BV
E. O. Fatunmbi, A. T. Adeosun, and S. O. Salawu
Springer Science and Business Media LLC
S.O. Salawu, A.M. Obalalu, E.O. Fatunmbi, and MD Shamshuddin
Elsevier BV
Ephesus Olusoji Fatunmbi, Olumuyiwa O. Akanbi, and Samuel Segun Okoya
Trans Tech Publications, Ltd.
This study assesses the motion and the dynamics of heat propagation in magneto-micropolar fluid along a sheet which vertically stretches on a two-dimensional plane in a porous material. The heat distribution is developed and evaluated under the condition of the prescribed wall temperature, constant magnetic field, thermal radiation, variable heat source and viscous dissipation. The main equations are re-formulated from partial to ordinary derivatives using similarity tools and consequently solved numerically by shooting and the Runge-Kutta Fehlberg approach. The parameters of interest are presented graphically to demonstrate their reactions on the velocity profiles, thermal field and heat transfer mechanism of the problem. The outcomes of the current investigation reveal that the heat transfer appreciates in the presence of higher Prandtl number, temperature exponent term and material parameter but decreases as the magnetic field term soars.Besides, the heat boundary structure expands and heat spread occurs as the thermal radiation, magnetic field and Eckert number terms escalates but a reverse trend is encountered as the Prandtl number, material micropolar term, Grashof number and heat exponent terms grows in magnitude. Under some limiting scenarios, the obtained data strongly correspond to the published studies in the open literature.
E. O Fatunmbi, A. T Adeosun, and S. S Okoya
Informa UK Limited
ABSTRACT This present study communicates entropy generation analysis in an unsteady flow of a reactive hydromagnetic micropolar fluid passing an exponentially stretchable sheet with multiple slip properties. The developed model scrutinizes the impacts of varying viscosity alongside with non-uniform heat source coupled with nonlinear thermal radiation. The formulated nonlinear equations describing the problem are carefully transformed into ordinary differential equations via similar transformations approach, while the solutions to the modified equations are sought using the Galerkin weighted residual method. A strong relationship exists between the results obtained in this study with the related published ones in literature in some limiting conditions. The current investigation reveals that the dimensionless velocity, temperature and concentration profiles depreciate with the unsteadiness parameter, whereas the micropolar material term accelerates the velocity profiles. Besides, the analysis shows that the hydrodynamic slip parameter improves heat and mass transfer irreversibilities while growth in the material micropolar term, Eckert and Prandtl numbers cause a rise in the entropy generation in the system.
E. O. Fatunmbi, I. L. Animasaun, A. S. Oke, and S. O. Salawu
Wiley
AbstractSequel to the usefulness of exploration of Carreau fluid flow for understanding the nature of the shear thinning and thickening characteristics of industrial fluids and polymer suspensions, nothing is known on the heat transfer across the dynamics of Carreau fluid subject to three kinds of stratification (i.e., thermal, concentration, and diffusion of motile microorganisms). In this article, the motion mentioned above when inclined Lorentz force, haphazard motion of tiny particles, thermophoresis, and motile gyrotactic microorganisms are significant is presented, explored, and deliberated upon. Similarity transformation variables were employed to reduce the model from partial to ordinary differential equations. The Runge–Kutta–Gill methodology was used in conjunction with the shooting method and MATLAB bvp4c to obtain the numerical solution. It is worth concluding that thermal stratification and wall heating/temperature ratio terms promote heat transmission while increasing the size of the Weissenberg number and the mixed convection parameter lowers the skin friction coefficient. Furthermore, it has been shown that when stresses grow, viscosity promotes the deformation of fluid components, resulting in fluid velocity retardation.
S.O. Salawu, A.M. Obalalu, E.O. Fatunmbi, and R.A. Oderinu
Elsevier BV
F. Mabood, E. O. Fatunmbi, L. Benos, and I. E. Sarris
Springer Science and Business Media LLC
Abayomi S. Oke, Ephesus O. Fatunmbi, Isaac L. Animasaun, and Belindar A. Juma
Informa UK Limited
Ephesus O. Fatunmbi, Sulyman Olakunle Salawu, and Adetunji Adeniyan
Begell House
Ephesus Olusoji Fatunmbi and Sulyman O. Salawu
Informa UK Limited
ABSTRACT The study numerically investigates the model of hydromagnetic, dissipative micropolar nanofluid flow being influenced by multiple slips and mass flux. Also, the entropy generated within the conducting chemical reactive micropolar nanofluid is examined in permeable media. Thermophoretic and Brownian motion impacts are examined on the model. The flow is assumed to be two-dimensional over a flat nonlinear stretchable sheet in a saturated porous medium of non-Darcy type. Mathematical equations representing the problem are converted from partial to ordinary differential equations by similarity transformation. The dimensionless form of the equations is solved using a shooting technique associated with Runge-Kutta algorithms of order four. The outcomes of the simulation are displayed graphically while comparisons are made with reported data in the literature for some limiting situations. The results reveal that the momentum boundary layer is enhanced with rising values of the Brownian motion term whereas a decrease in the concentration distribution is found with a rise in Brownian motion. Besides, the thermophoresis parameter reduces entropy production in the system and the Bejan number is also reduced.
E.O. Fatunmbi, A.T. Adeosun, and S.O. Salawu
Elsevier BV
H.A. Ogunseye, S.O. Salawu, and E.O. Fatunmbi
Elsevier BV
Ephesus Olusoji Fatunmbi, Adeshina Taofeeq Adeosun, and Sulyman Olakunle Salawu
MDPI AG
The report contained in this article is based on entropy generation for a reactive Eyring–Powell nanoliquid transfer past a porous vertical Riga device. In the developed model, the impacts of viscous dissipation, thermophoresis alongside nonlinear heat radiation and varying heat conductivity are modelled into the heat equation. The dimensionless transport equations are analytically tackled via Homotopy analysis method while the computational values of chosen parameters are compared with the Galerkin weighted residual method. Graphical information of the various parameters that emerged from the model are obtained and deliberated effectively. The consequences of this study are that the temperature field expands with thermophoresis, Brownian motion and temperature ratio parameters as the modified Hartmann number compels a rise in the velocity profile. The entropy generation rises with an uplift in fluid material term as well as Biot and Eckert numbers whereas Bejan number lessens with Darcy and Eckert parameters.
Ephesus Olusoji Fatunmbi and Samuel Segun Okoya
Trans Tech Publications, Ltd.
An analysis of nonlinear mixed convection transport of hydromagnetic Casson nanofluid over a nonlinear stretching sheet near a stagnation point is deliberated in this study. The flow is confined in a porous device in the presence of thermophoresis, Ohmic heating, non-uniform heat source with temperature-dependent thermal conductivity associated with haphazard motion of tiny particles. The transport equations are translated from nonlinear partial differential equations into ordinary ones via similarity transformation technique and subsequently tackled with shooting method coupled with Runge-Kutta Fehlberg algorithm. The significant contributions of the embedded parameters on the dimensionless quantities are graphically depicted and deliberated while the numerical results strongly agree with related published studies in the limiting conditions. It is found that a rise in the magnitude of Casson fluid parameter decelerates the fluid flow while enhancing the viscous drag and thermal profiles. The inclusion of the nonlinear convection term aids fluid flow whereas heat transfer reduces with growth in the thermophoresis and Brownian motion terms.
S.O. Salawu, E.O. Fatunmbi, and S.S. Okoya
Elsevier BV
Ephesus Olusoji Fatunmbi, Fazle Mabood, Hedi Elmonser, and Iskander Tlili
IOP Publishing
Abstract The intent of this paper is to unravel the transport of a nonlinear mixed convection tangent hyperbolic nanofluid along a nonlinear stretchable sheet in the neighbourhood of a stagnation point. The impacts of magnetohydrodynamic, thermophoresis, Brownian motion and activation energy together with non-uniform heat source associated with varying thermal conductivity are scrutinized. The outlining transport equations are mutated into a system of nondimensional ordinary differential equations by the use of similarity transformations and then tackled with the Runge–Kutta Fehlberg coupling shooting method. The impact of all essential parameters in respect of the dimensionless quantities are graphically exhibited and deliberated. The significant consequences of the investigation are that increment in the Darcy with magnetic term declines the flow velocity while that uplift the fluid temperature. The skin friction factor triggers a considerable increase with the power-law exponent and magnetic field parameters. The intensity of heat and mass transfer shrink with hike in the values of the thermophoresis parameter. The vetting of the numerical solution is done with earlier related studies in the limiting position and presented in tabular form showing perfect correlation.