Abstract
The problems of mixed convection viscoelastic fluid flow and heat transfer past a permeable stretching sheet are investigated considering the suction/injection, radiation and thermo-diffusion effects and thermophoresis. The fluid under consideration is water-based and consists of three distinct shaped nanoparticles with the claim of superior heat transmission. The dimensional equation that models the aforesaid transport phenomenon was non-dimensionalized, parameterized, and solved analytically using appropriate similarity variables. Both the heat and concentration analyses are considered in this boundary layer problem. The analyses of viscoelasticity, suction/injection, and boundary effects, which affect the fluid flow, are studied. Graphs are used to determine and present the behaviour of physical parameters such as Lewis, Prandtl, Dufour and Soret numbers influencing temperature and concentration field. The results revealed the existence of multiple solutions for higher Prandtl number values. The dynamic, thermal, and diffusive boundary layer domains are substantially improved as values rise. This study has importance in extrusion processing, dyeing of metals, etc., in engineering applications where the heat transfer of the fluid is controlled.
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