Double‐diffusive convection in a porous complex‐shaped cavity suspended by nano‐encapsulated phase change materials

Abstract

AbstractThis paper simulates a double‐diffusive convection of suspended nano‐encapsulated phase change materials (NEPCM) embedded inside a porous complex‐shaped cavity. The ISPH method is employed to handle the controlling equations in dimensionless form. The complex‐shaped cavity consists of a circular cylinder mounted vertically on two rectangle shapes. Variable‐length on the left wall is maintained at a temperature and concentration higher than the on the other side of the wall. Phase changes in encapsulated nanoparticles were assessed by the heat capacity of the core and shell layers. The simulations carried out were shown in terms of the velocity field, temperature, concentration, and melting‐solidification zones below the effects of the variable hot source , the fusion temperature and the Stefan parameter . The main finding indicated that the phase change zone follows the hot source within the cavity. The expansions of the partial hot length and the fusion temperature alter the intensity and location of the phase change zone. An augmentation in the Stefan number lowers the intensity of the phase change zone.