Review of Reduced Gravity Boiling Heat Transfer : Japanese Research

To introduce the advance in the researches on boiling and two-phase ‰ow in reduced gravityelds and the change in the situation surrounding them in Japan, a short review is focused on the individual research subjects, i.e., pool boiling, ‰ow boiling, and unheated two-phase ‰ow including their major topics. Representative results obtained so far are introduced. Future direction of researches on the present discipline is proposed and the activity to enhance the opportunity to use facilities with longer reduced gravity duration is explained.