Temperature Freezing in Spherical or Cylindrical Expansion into a Vacuum

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概要

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• The phenomenon of the temperature freezing in the source flow expansion into a vacuum and its dependence on the flow geometries are studied not only qualitatively but also quantitatively. A significant parameter which provides a measure for the occurrence of temperature freezing is introduced based on a dimensional analysis. Numerical analysis is worked out by means of the discrete ordinate method for three cases; a) spherical source flow expansion, b) cylindrical source flow expansion, and c) cylindrical source flow expansion of gases consisting of disc-like molecules. The criterion on the occurrence of temperature freezing, being obtained from the dimensional considerations, is examined from comparison with the results by numerical analyses.

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著者

• Soga Takeo

  (present Address)department Of Aeronautics Nagoya University

関連論文

• Temperature Freezing in Spherical or Cylindrical Expansion into a Vacuum

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