固定堰及びため池等の洪水吐における水膜振動・騒音低減工法の開発
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概要
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This paper describes experimental study on sound reduction from nappe oscillation. Nappe oscillation at weir sometimes produces a low frequency sound. The low frequency sound sometimes causes vibrations of windowpanes of houses and so on. We show that low frequency sound can be suppressed experimentally by setting obstacle at the lower end of a falling water sheet.