<p>In the engineering application of porous aerostatic radial bearings, the gas supplied is generally not absolutely clean, and the micropores in porous materials are usually very small. As the aerostatic bearing continues to operate, impurities in the gas gradually accumulate and form blockages at certain points in the porous medium, affecting the bearing performance. Therefore, a systematic study of the impact of blockages in porous media on aerostatic bearings is essential. This paper establishes lubrication models for porous aerostatic radial bearings under both blockage-free and blocked conditions. Through Fluent simulation analysis, the effects of the number, location, and size of blockages on the static characteristics of the bearing are examined. An analysis of the extent of impact of blockages on bearing performance is also conducted, providing a reference basis for judging the operating condition of the bearing and optimizing bearing design in practical applications.</p>