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    Öğe
    Investigation of Williamson nanofluid in a convectively heated peristaltic channel and magnetic field via method of moments
    (Aip Publishing, 2023) Alharbi, Khalid Abdulkhaliq M.; Adnan, Sayed M.; Eldin, Sayed; Akgul, Ali
    The study of Williamson nanofluid under peristaltic pumping is conducted in this work. The model equations are developed using the magnetic field and convection effects, and consequently, a nonlinear system of ordinary differential equations is achieved. Then, the residual method based on a linearly independent set of functions known as method of moments is implemented and portrayed as the results under the parameters' variations. The model results revealed that the peristaltic pumping can be controlled by increasing the values of G(r) and G(c); however, the dual effects of the directed magnetic field on the movement of Williamson fluid are examined. The heat transfer augmentation is observed for a stronger Brinkman number and it is higher toward the channel walls. Similarly, the thermophoretic effect and Brownian motion of the particles highly affect the concentration of Williamson nanofluid.
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    Öğe
    Thermal management in annular fin using ternary nanomaterials influenced by magneto-radiative phenomenon and natural convection
    (Nature Portfolio, 2023) Alharbi, Khalid Abdulkhaliq M.; Adnan; Bani-Fwaz, Mutasem Z.; Eldin, Sayed; Akgul, Ali
    Annular fin is a particular mechanical setup for heat transfer that varies radially and frequently utilize in applied thermal engineering. Addition of annular fin to working apparatus enhance the surface area in contact with surrounding fluid. Other potential areas of fin installation are radiators, power plant heat exchangers and also it plays significant role in sustainable energy technologies. The major objective of this research is to introduce an efficient annular fin energy model influenced by thermal radiation, magnetic forces, coefficient of thermal conductivity, heating source with addition of modified Tiwari-Das model. Then, numerical treatment performed to acquire the desired efficiency. From the results, it is scrutinized that the fin efficiency significantly improved by strengthening the physical strength of a(1), a(2) and ?(1) and the use of ternary nanofluid make it more efficient. Addition of heating source Q(1) make the fin more efficient and radiative number is better to cool it. The role of ternary nanofluid observed dominant throughout the analysis and the results validated with existing data.