Heat Transfer Analysis of Radiative MHD Casson Fluid over Nonlinear Extended Sheet under Influence of Suction/Injection: non Similarity Numerical Investigation
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Keywords:
Casson Fluid, Nonlinear Stretching Sheet, Thermal Radiation, Suction And Injection, Non-Similarity TransformationAbstract
The present study investigates the heat transfer characteristics of radiative
magnetohydrodynamic (MHD) Casson fluid flow over a nonlinear extended sheet subject to suction and
injection effects. A non-similarity approach is employed to capture the more general behavior of the
governing boundary layer equations, which are derived under appropriate physical assumptions. The
mathematical model incorporates the influence of magnetic field, thermal radiation, nonlinear stretching,
and suction/injection on the velocity and thermal boundary layers. By applying suitable similarity and non
similarity transformations, the governing partial differential equations are reduced to a coupled system of
nonlinear equations, which are then solved numerically. The effects of key controlling parameters including
the Casson parameter, magnetic field strength, nonlinear stretching index, radiation parameter, and
suction/injection parameter on the flow and thermal distributions are analyzed in detail. The results
highlight that suction enhances the cooling rate by thinning both velocity and thermal boundary layers,
while injection produces the opposite effect. Moreover, the interaction between radiation and MHD
significantly alters the heat transfer rate near the sheet. The findings provide useful insights into the control
of transport phenomena in industrial processes involving polymer extrusion, coating, and cooling
technologies.
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