Improving impeller and water flow section of vane pumpsAlisher Dzhurabekov, Jaloliddin Rashidov, Aleksandr Gazaryan, Boybek Kholbutaev, Shakhnoza Mansurova and Norpulat TashmatovE3S Web of Conf., 365 (2023) 03002DOI: https://doi.org/10.1051/e3sconf/202336503002