2001 Volume 15 Issue 2 Pages 113-123
The progress of the two-phase flow research has been divided into four stages in this series of the report. These periods are (I) 1948-1959, (II) 1960-1970, (III) 1971-1979, (IV) 1980-1988. In Chap. 8 in this report, various methods of the theoretical analysis of water circulation in boilers in the time before the period (I), when analog and digital computers did not exist, have been introduced. And short review of development of theoretical analysis of flow instabilities in two-phase flow in the periods (II)-(IV) has been described based on the history of publication of books, reviews, and dissertations concerning two-phase flow, as the introdution of Chap. 9. The main parts of Chap. 9 will be presented in the next report.