水車の模型効率換算の一方法

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  • A Method Predicting the Efficiency of Water Turbines by their Model Tests
  • スイシャ ノ モケイ コウリツ カンサン ノ イチ ホウホウ

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As to the formula predicting the fficiency of prototype water turbines by their model tests, many formulas have been already presented by many investigators and are used practically. It seems, however, these formulas are not always exact as to treatment of hydraulic pressure losses. In this paper the authors show the method predicting the efficiency of prototype water turbines using the model test data at different speed. By this method more certain values of the efficiency are able to be obtained. A similar calculating method are applied to the test data using the different size models also.

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