書誌事項
- タイトル別名
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- Experimental Observation of Cavitation Instabilities around Isolated Hydrofoils
- タンドクヨク ニ ショウジル キャビテーション フアンテイ ゲンショウ ノ ジッケンテキ ケンキュウ
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抄録
Unsteady cavitating flows around two types of isolated two-dimensional hydrofoils, flat plate and Clark-Y 11.7％, are experimentally studied in order to understand the unsteady characteristics of cavitation instabilities. From visual observations using high-speed video cameras, the cavity length fluctuations with the cloud cavity formation from the trailing edge of attached cavity are investigated as well as cavity patterns such as patch, sheet（partial and super），shear, and so on. The pressure fluctuations near the leading and trailing edges of hydrofoil are measured simultaneously with high-speed camera recording, to relate the emitted pressure disturbances with sheet cavity fluctuations. It is found that, despite of large geometric differences between hydrofoils, two types of cavitation instabilities, partial and transitional cavity oscillations, can occur for both hydrofoils, provided the necessary flow conditions：the partial cavity oscillation occurs when the partial cavity forms from near the leading edge of hydrofoil. The transitional cavity oscillation is unaffected by the location of the leading edge of the cavity, and occurs when the trailing edge of the cavity becomes close to that of hydrofoil.
収録刊行物
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- ターボ機械
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ターボ機械 40 (4), 248-255, 2012
一般社団法人 ターボ機械協会
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詳細情報 詳細情報について
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- CRID
- 1390001204544816128
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- NII論文ID
- 10030147027
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- NII書誌ID
- AN00004836
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- ISSN
- 18802338
- 03858839
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- NDL書誌ID
- 023621789
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可