Browsing by Author "TAIWO, MICHAEL ADESOLA"

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    COMPUTATIONALANALYSISOF CONYECTIVE HEAT AND MASS TRANSFERIN A CASSONNANOFLUID OVER A VERTICAL RIGA PLATE
    (2025-10-12) TAIWO, MICHAEL ADESOLA
    ABSTRACT The dynamics of heat and mass transport of Cassonnan of luid hasbecomecentreofresearch in recent time due to its scientific and engineering applications in the petrochemical and metallurgical fields. This study examined the combined effects of some thermophysical parameters on Casson nanofluid over a vertical Riga plate. The equations of momentum, energy and mass describing the flow, heat and mass transfer were formulated and transformed into coupled non-linear ordinary differential equations using the similarity transformation method. The resulting self similar problems were solved using spectral collocation method. The impacts of associated pertinent parameters such as Hartmann number (M), Chemical reaction parameter (Cz),Thermal radiation (R),Soret number (Sz),Dufour number (Do), Eckert number (Ec), Prandtl number tPr), Schmidt number (Sc),thermophoretic number (It)ilnd Lewis number (I.n) were presented graphically on Velocity, Temperature and Concentration fields. The Skin frictionCJ!, Nusselt number (Nq) and Sherwood number (Sh) were presented in tabular form.The results showed that variationin the values of modifiedHartmannumber at 1.0 ñ M E 3.0 causedabrupt increase in the velocity profile in the vicinity of the Riga plate wall. The increase in the thermalradiationat 0.0ñRñ1.0andEckert number at 0.10ñEcñ1.12 wereobserved to increase thevelocity, temperature and the thermal condition of the fluid. Various values of Prandtlnumber within the range0.71ñPrE7.0 were foundto decrease the velocity and temperature profiles, indicating that at small values of Prandtl number, the fluid was more conductive while increase in thermal conductivity enhanced the velocity hydrodynamic boundary layer, temperature and thermal boundary layer thickness in the presenceofBrownianmotionparameter{Np)at4.0 ñ M E 12.0.Furthermore, enhancement in fi and Ec improved the Nusselt number which consequently increased the rate of heat transfer while the rate of mass transfer was boosted with various values of Sqand C.Thisstudyrevealed thatthe pertinent parameters improved theflow,heatand mass transport in Casson nanofluid over a vertical Riga plate.