document: The results of experimental studies of the reflooding of fuel-rod assemblies from above and problems for future investigations Problems in studying the reflooding of assemblies from above conducted at foreign and Russian experimental installations are considered . The efficiency of cooling and flow reversal under countercurrent flow of steam and water , as well as the scale effect are analyzed . The tasks for future experiments that are necessary for the development of modern correlations for the loss-of-coolant accident -LRB- LOCA -RRB- computer codes are stated
doc_bio_tags: O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I I O O O O O O O O B I O B I O B O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: russian experimental installations flow reversal countercurrent flow steam water
abstractive_keyphrases: fuel-rod assemblies reflooding cooling efficiency loss-of-coolant accident computer codes loca computer codes