Effects of rotating square shape and oriented fins on convective flow of nanofluid contained in a cavity under magnetic field effect

Abstract

This paper deals with thermo‐solutal convection by the oriented fins inside a cavity mobilized by a nanofluid. The three fins are located horizontally in the cavity's center surrounded by a rotating square shape. ISPH method carries the circular rotation of the embedded square shape over the oriented fins. Three distinct thermal/solutal conditions of an inner shape including adiabatic (C1), hot (C2), and cold (C3) are conducted. The configurations of the oriented fins in improving thermo‐solutal convection are investigated. It is indicated that the expanded fins length supports the rate of heat/mass transfer and delivers a greater overall heat/mass transfer. The lower nanofluid velocity is found at an expanded fins length, adding extra nanoparticles, extra Hartmann number, and cold condition (C3). Adding extra nanoparticles to 20% slows down the nanofluid velocity by 55.28% Increasing the Soret number to two enhances the nanofluid velocity by 69.47%. The circular rotation of an inner shape changes the patterns of nanofluid movements and circulations of temperature and concentration within a cavity. The magnetic field is working effectively at an extra Hartmann number for shrinking the nanofluid velocity and declines the heat/mass transmission in a cavity.