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Information × Registration Number 2122U002041, Article popup.category Стаття Title popup.author popup.publication 01-01-2022 popup.source_user Сумський державний університет popup.source https://essuir.sumdu.edu.ua/handle/123456789/88077 popup.publisher Sumy State University Description The article is devoted to studying the contra-rotating stages with different impellers and blade discs. Determining the reduction of volumetric losses by modeling the contra-rotating stages in the software package ANSYS CFX. The work aimed to create and study the flow and characteristics: semi-open, closed impellers, and blade discs. As a result of the work, the following contra-rotating stages were determined and compared: the semiopened impeller with the semi-opened blade disc; the closed impeller with the closed blade disc; the semi-opened impeller with the closed blade disc; the closed impeller with the semi-opened blade disc. As a result of research, fluid flows in contra-rotating stages and their characteristics in the form of pressure and efficiency were obtained. According to the obtained data, the expediency of using contra-rotating stages as a working body of the pump is written. popup.nrat_date 2025-03-24 Close