書誌事項
- タイトル別名
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- Two-Fluid Model Approach for Transient Analysis of Free-Surface-Pressurized Flows.
- 2リュウタイ モデル ニ ヨル カイヘイ スイロ キョウゾンケイ ナガレ ノ カト ゲンショウ カイセキ
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A new computational model is developed here to analyze the influence of entrapped air on free-surface-pressurized flows. A virtual slot with ceiling on the top of the pipe is introduced to treat a separated gas-liquid flow. This model is a modified model of Preissmann's and is applicable not only to open channel flow and closed conduit flow but also pressurized flow with entrapped air. Compared to experimental results using the model of 1/50 scale, the calculation results show that the entrapped air in horizontal pipe advances the time of pressure rising and makes the maximum value of pressure higher. The escape flow of entrapped air at dropshaft is caused by surface waves pushing the air in the horizontal pipe, and then the pipe slope affects the flow rate of air. The air compressibility has less effect on the transient separated air-water flow in the pipe.
収録刊行物
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- 日本機械学会論文集Ｂ編
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日本機械学会論文集Ｂ編 67 (659), 1742-1748, 2001
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001206182473984
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- NII論文ID
- 110002397673
- 130004080506
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- NII書誌ID
- AN00187441
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- ISSN
- 18848346
- 03875016
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- NDL書誌ID
- 5852372
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可