Conductance of gases through different short circular passages at low
density conditions is experimentally investigated. The main aim of the
study is to verify the validity of the commonly used electrical analo
gy method of calculating flow resistance of a composite passage from t
he individual elements making the composite geometry. The range of Knu
dsen numbers covered in the experiments is from 0.01736 to 4.61, where
as the Reynolds number varied from 0.1792 to 14.83.