…(3) Cavitation Tests Propellers on large ships often experience cavitation, which has harmful effects such as damage to the propeller blades and vibration of the ship. In cavitation tests, the propeller is rotated in a circulating water tank (cavitation tank), and the occurrence of cavitation is observed and the blade surface pressure is measured to develop a propeller shape that is not adversely affected by cavitation, and to conduct basic research on the occurrence and damage of cavitation. The tank is airtight and has a structure that allows water to circulate, and the pressure, flow rate, and amount of gas contained are controlled to satisfy the similarity law of the cavitation phenomenon. … *Some of the terminology that refers to "cavitation tank" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…(3)キャビテーション試験 大型船のプロペラでは,プロペラ翼の損傷,船体振動などの有害な影響を及ぼすキャビテーションが発生することが多い。キャビテーション試験は,回流型の水槽(キャビテーション水槽)中でプロペラを回転させ,キャビテーションの発生の観察,翼面圧力の計測などを行い,キャビテーションによる悪影響のないプロペラ形状の開発や,キャビテーションの発生や損傷に関する基礎的な研究を行うための試験。水槽は気密で水が循環するような構造につくられ,圧力,流速と含有気体量を制御することによってキャビテーション現象の相似則を満たすようになっている。… ※「キャビテーション水槽」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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