Low density conductance through composite geometries

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 analogy method of calculating flow resistance of a composite passage from the individual elements making the composite geometry. The range of Knudsen numbers covered in the experiments is from 0.01736 to 4.61, whereas the Reynolds number varied from 0.1792 to 14.83. © 1995.