Heat transfer enhancement in hydromagnetic dissipative flow past a moving wedge suspended by H2O-aluminum alloy nanoparticles in the presence of thermal radiation |
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Authors: | Umar Khan Naveed Ahmed Syed Tauseef Mohyud-Din |
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Affiliation: | 1. Department of Mathematics, COMSATS Institute of Information Technology, Abbottabad, Pakistan;2. Department of Mathematics, Mohiud-Din Islamic University, Nerian Sharif, Azad Jammu and Kashmir, Pakistan;3. Department of Mathematics, Faculty of Sciences, HITEC University, Taxila Cantt, Pakistan;4. University of Islamabad (UoI), Islamabad, Pakistan |
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Abstract: | This letter investigates the two dimensional magnetohydrodynamic Falkner Skan flow of water saturated with AA7072–H2O and AA7075–H2O nanoparticles over a moving wedge. Influence of viscous dissipation and thermal radiation is also under consideration. The model is reduced into nondimensional form by using defined self-similar transformations. Then, numerical study (Runge-Kutta numerical scheme) is carried out for solution purpose. The effects of pertinent flow parameters are discussed in the flow regimes by means of graphical aid. Graphical results for special cases (static wedge and when the movement of flow and wedge is in opposite direction) of the model are also elucidated graphically. It is noted that fluid velocity decreases for volumetric fraction and magnetic force favor the velocity. Significant effects of thermal radiation and nanoparticles volume fraction pointed for thermal filed and the influence of Eckert number is almost inconsequential. For more radiative fluid heat transfer coefficient decreases and nanoparticles volumetric fraction favor the local rate of heat transfer. In the presence of AA7075 nanoparticles, rate of heat transfer is quite rapid as compared to that of AA7072 nanoparticles. To validate the present computations, some present results are compared with already existing results in the literature and found better agreement between them. Finally, major points of the study ingrained in the last section of the letter. |
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Keywords: | Falkner Skan flow Viscous dissipation Moving wedge Runge-Kutta scheme Skin friction and local Nusselt number |
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