As energy and environmental issues become more and more emergent, it is important to develop clean combustion technology with high efficiency. Numerical simulations have been performed to investigate spray combustion in porous inert media. Higher efficiency can be achieved by inserting porous inert media into combustion systems, as well as lower emissions. Porous media burners have their own particular characteristics, such as compact structure, super-adiabatic flame temperature, extended lean flaming...