A comprehensive understanding of energy flow and entropy generation is needed for an optimal process design via reducing irreversibilities in terms of ‘entropy generation’. In this study, analysis on entropy generation during natural convection in a trapezoidal cavity with various...

Mixed convection in closed cavities are important for various processing industries especially those associated with conservation of energy. Finite element based simulations are carried out for two cases based on the motion of the horizontal wall(s) (cases 1a–1d) or vertical wall(s) (cases...