@article{oai:jaxa.repo.nii.ac.jp:00034464,
 author = {OGUCHI, Hakuro and SATO, Shunitsu and INOUE, Osamu},
 issue = {12},
 journal = {ISAS report/Institute of Space and Aeronautical Science,University of Tokyo},
 month = {Jul},
 note = {In a separate issue of two different molecular-weight gases through the concentric orifices into a vacuum, both density measurement and flow visualization are made by means of the electron beam fluorescence technique. In the experiment, the nitrogen is used as heavier gas and the helium as lighter gas. The gasdynamical interaction between outer jet of heavier (or lighter) gas and inner jet of lighter (or heavier) gas is examined, and specifically the density behavior of the gas species issued from inner orifice is clarified., 資料番号: SA2400878000},
 pages = {303--315},
 title = {Free Jet Expansion from Concentric Orifices into Vacuum},
 volume = {37},
 year = {1972}
}