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Приводятся данные и обоснование улучшения кавитационных показателей обратимой гидромашины с напором 700 м и единичной мощностью 200 МВт путем замены числа лопастей с 6 до 7. Представлены данные гидродинамических и прочностных расчетов лопастных систем рабочего колеса.
Presented are the date demonstrating improvement the cavitation properties of the reversible pump-turbine designed for 700 m head and 200 MW power. Such an improvement may be reached by change of blades quantity from 6 to 7. The results of the fluid dynamic and strength calculation of the impeller-runner blade cascade in the pump modes of operation are shown.
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