@article{oai:mie-u.repo.nii.ac.jp:00004756, author = {Fujimoto, Tetsuo and 藤本, 哲夫 and Usami, Masaru and 宇佐見, 勝}, journal = {Research reports of the Faculty of Engineering, Mie University}, month = {Dec}, note = {application/pdf, The efflux of rarefied gases through various orifices has been investigated experimentally, and the conductance of the orifice has been calculated for Knudsen number (mean free path / aperture diameter) of about 0.01 to 10. The method of an nusteady approach is adopted. The conductance obtained is compared with several existing formulas. Furthermore, variation of the conductance with respect to the diameter and the thickness of an orifice is considered.}, pages = {21--30}, title = {Rarefied Gas Flow through Orifices}, volume = {5}, year = {1980} }