DOI: 10.11648/j.fm.20261101.12 ISSN: 2575-1816

Numerical Analysis of Magnetohydrodynamic (MHD) Glycerin Copper-Silver Hybrid Nano-Coolant Using Tiwari-Das Model

Simon Wekesa, John Okello, Winifred Mutuku
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The existence of machines, electronic devices, environmental regulations and the blooming technology demands for endless efficient heat transfer fluid in automotive radiators, electronics heat sinks and dispersants in transformers coolers. The nanofluid flow is advanced with the aim of bridging the gap in fields such as engineering, industries and medical. The potential use of hydromagnetic (Cu/Ag-glycerine) hybrid nanofluid as a coolant is examined. The Tiwari-Das nanofluid model is applied in the formulation of the partial differential equations describing the flow. The introduction of similarity transformation variables converts the equations to nonlinear systems. The deployment of the state-space method linearizes the ordinary differential equations which numerically solves using the fourth-order Runge-Kutta method with a shooting technique in MATLAB. The ode45 function is invoked. The outputs of the simulation are displayed graphically and in tabular form. The results show the fluid velocity decays with the rise of magnetic strength and Prandtl number while it escalates with radiation parameter, Grashof and Darcy numbers correspondingly. Further, the temperature of the fluid increases with magnetic and radiation parameters and Eckert number. The opposite trend is observed with soaring Prandtl and Darcy numbers respectively. The local skin friction coefficient dwindles with the growth of porosity, magnetic field and radiation parameters. The rate of energy transfer is elevated with increase in magnetic field, radiation and porosity. The decrease in fluid velocity and the hike rate of heat transfer with magnetic field are utilized in thermal transfer, cooling and in heat flow management.

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