[en] The purpose of this NRC sponsored university research program is to develop a more thorough understanding of the two-phase flow phenomena associated with certain hypothetical nuclear reactor accidents. This program is divided into three major tasks: (1) development of instrumentation for two-phase flow measurements; (2) the study of phase separation and distribution phenomena; (3) the study of BWR ECC paralled channel effects. In all three tasks considerable analytical and experimental work was accomplished during the ninth quarter, these results are summarized in this report