Abstract This paper presents influences of suspending a different number of Silver nanoparticles on the flow parameters of Argon base fluid, which is under boiling condition inside a cubic microchannel.… Click to show full abstract
Abstract This paper presents influences of suspending a different number of Silver nanoparticles on the flow parameters of Argon base fluid, which is under boiling condition inside a cubic microchannel. Argon flow is enforced by an external force of 0.002 eV/A°. Also, a constant temperature of 108 K is applied to the walls of the microchannel to prepare boiling flow condition. Presence of Silver nanoparticles empowers heat transfer rate and brings stronger phase change. It is the reason of sooner translocation of base fluid atoms from the vicinity of microchannel walls to the center of the microchannel in z-direction. This phenomenon enhances fluid temperature whereas; it is not in favor of external driving force, which supports the velocity of fluid flow inside microchannel in x-direction. Despite fluctuation in density profiles, it is indicated that Silver nanoparticles are never attached together. Also, the influence of nanoparticles on the density fluctuation is significant at lower time steps. Afterward, the statistical approach is employed to present accurate results. It was found that presence of two, four and six nanoparticles into Argon base fluid increases summation of density as much as 20%, 37% and 67%, Whereas; they bring enhancement in summation of temperatures as much as 20%, 49%, and 84% respectively. Finally, it is concluded that investment on preparing nanofluid by suspending two nanoparticles into Argon base fluid is not economical for practical application; while, suspending four and six numbers of Silver nanoparticles is applicable for practical application.
               
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