Based on the theory of fluid dynamics in porous media,a numerical model of landfill gas migration is developed under presumption of small variation of air pressure,negligible change of gas density.This model is characterized with wider range of its availability, such as any shape of domain and space variation of media property at landfill site.The influence of water content of the media on landfill gas migration is taken into account.In this paper,the comparison and analysis of landfill gas migration sim...