Measurement of Condensation Onset in Steady Supersonic Laval Nozzle Flow for the Molecular Laser Isotope Separation Process.

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  • OKADA Yoshiki
    The Institute of Physical and Chemical Research (RIKEN)
  • SUNOUCHI Kei
    The Institute of Physical and Chemical Research (RIKEN)
  • RYU Hojin
    The Institute of Physical and Chemical Research (RIKEN) Division of Inorganic Materials, Korea Research Institute of Chemical Technology
  • PATRA Amitava
    The Institute of Physical and Chemical Research (RIKEN) Sol-Gel Laboratory, Central Glass &Ceramic Research Institute
  • ASHIMINE Katsunari
    The Institute of Physical and Chemical Research (RIKEN)
  • TAKEUCHI Kazuo
    The Institute of Physical and Chemical Research (RIKEN)

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  • Measurement of Condensation Onset in St

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Abstract

A method based on laser light scattering is presented for the observation of the condensation of working molecules in a steady-state-flow supersonic Laval nozzle operating in a closed loop. The distribution of scattered light from droplets formed by condensation along the flow direction is measured from photographs to determine the point of condensation onset. The temperature and density at the onset point are obtained from the values of static pressure based on the equations of isentropic flow.

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