Natural convective flow of nanofluid in a square porous cavity

Abstract

The present thesis deals with the study of convective flow behaviors on porous media in the sense of streamline flow velocity, heat flow, temperature distribution, heat transfer from the walls in terms of local and average Nusselt number. An entire study chooses the two-dimensional enclosure/cavity of closed space. The square cavity contains immobile walls with no-slip flow velocities. Action of free convection by addressing/non-addressing of an applied magnetic field effects are taken onto the study. The study is done with the normal nanofluid (Cu-water nanofluid) and later replaced with the hybrid nanofluid (Al2O3-Cu-water nanofluid). The simulation of flow characteristics is done numerically by solving the ruling equations in the form of continuity, momentum and energy equations. These equations are solved using numerical techniques after converted to the dimensionless form with the help of proposed boundary conditions. The numerical computations are carried using own (in-house) CFD coding by using the FORTRAN compiler and visualization is carried out with the MATLAB. Also, a chapter containing the action of non-linear natural convection effects (quadratic natural convection) on HTFF is included in the thesis. The research contributions are authenticated with the research results obtained by eminent researchers.