Abstract
This work is focused on steady natural convection of nanofluids in an inclined trapezoidal enclosure filled with porous medium due to different heat conditions of the bottom wall in the presence of heat source/sink. Whilst the bottom wall of the trapezoidal is uniformly or non-uniformly
heating, the top wall is considered adiabatic. The left and right inclined walls are maintained at a relatively low temperature. The fluid inside the cavity is a water based nanofluid containing different types of solid spherical nanoparticles: Al2O3 and CuO. Finite difference
method is used to solve the dimensionless PDE's governing the flow. Based on the numerical simulation, the effects of the dominant parameters such as trapezoidal inclination angle, solid volume fraction, heat source effect and type of nanoparticles are examined. The numerical results are obtained
for inclination angle ranging from 0° to 90°, for heat generation/absorption parameters varying from -2 to 2 and for the solid volume fractions varying from 0% to 4%. Comparisons with previously published numerical results in special cases are performed and good agreements between
the results are observed. All the obtained results are presented in contour maps and graphical forms and discussed.