Thermosolutal convection of nano–encapsulated phase change materials within a porous circular cylinder containing crescent with periodic side-wall temperature and concentration: ISPH simulation

Abstract

This work inspects the magnetic influences on the thermosolutal convection of nano–encapsulated phase change materials (NEPCMs) within a circular cylinder including crescent with periodic side-wall temperature and concentration. The incompressible smoothed particle hydrodynamics (ISPH) method based on a Grunwald- Letnikove time derivative is adopted to handle the current physical problem. The circular cylinder is suspended by NEPCM and saturated by a porous medium. Rotation of an inner crescent with a variable frequency has been conducted. The influences of a fractional time derivative from 0.95 to 1, Darcy parameter from to Rayleigh number from to Hartmann number from 0 to 50, a fusion temperature from 0.05 to 0.9, rotation parameter from 1 to 5, amplitude parameter from 0.5 to 2, and frequency parameter from 5 to 100 on the heat capacity, isotherms, velocity field, isoconcentration, and mean Nusselt number and mean Sherwood number are investigated. It is found that an increase in the Hartmann number drops the velocity’s maximum by 21.43%. Increasing a fusion temperature shifts the phase change zone towards the inserted heated crescent. The angular rotation parameter for an inner crescent is changing the heat/mass transport and nanofluid movements within a circular cylinder. The phase change zone is affected by the variations of an amplitude parameter at higher values of the frequency The values of and are increasing as an amplitude parameter boosts.