Numerical Study for the Solidification of Nanoparticle-Enhanced Phase Change Materials (NEPCM) Filled in a Wavy Cavity

摘要

In this paper, the results of a numerical simulation of solidification phenomenon of nanoparticles mixed phase change materials are presented. The nanoparticles of copper dispersed in water were considered as nanofluid filled in a wavy cavity for this study. A parametric study concerning with the effect of nanoparticle volume fractions, initial temperature of nanofluid, and temperature of cold wall is carried out and findings are presented. Also, the effect of Grash of number on the solidification time is investigated. The results of this numerical investigation reveal that wavy cavity help to reduce the total solidification time of nanofluid over the square cavity. Also, the increasing volume of nanoparticles reduces the solidification time.