年次大会講演論文集
Online ISSN : 2433-1325
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1203 ベンチュリ管とキャビテーション噴流法による壊食の比較
福山 岳樹服部 修次八木 良憲村瀬 道雄
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p. 117-118

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Cavitation erosion was compared between venturi tube and cavitating jet methods. It was found that the erosion by cavitating jets occurs 400 to 1000 times as fast as that by the venturi tube, thus the cavitating jet method is effective for the acceleration test. The exponent of the relation between MDERmax (mean depth of erosion rate) and flow velocity is 2.3 to 3.3 for venturi tube and is 6.5 for cavitating jet, which agrees with that of the relation between ΣFi^2 and flow velocity. It was concluded that MDERmax of venturi tube can be estimated from the extrapolation of the relation between ΣFi^2 and MDERmax which was obtained for the cavitating jet test.
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© 2002 一般社団法人日本機械学会
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