Flow Characteristics around a Valve Plate Installed in a Duct : 2nd Report, Swing Type Valve Plate Installed in a Chamber
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- タイトル別名
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- Flow Characteristics around a Valve Plate Installed in a Duct : 2rd Report, Swing Type Valve Plate Installed in a Chamber
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The steady flow characteristics around a swing-type valve plate installed in a rectangular duct are studied theoretically and experimentally in order to determine the fluid force acting on a swing-type check valve and the side-gap-leakage effects. The results show that the side-gap leakage has dominant influence upon the fluid force characteristics, which can be well predicted by a small modification of the conventional two-dimensional potential flow theory. For the case of a large side gap, the pressure over the valve plate becomes nearly uniform and is equal to the upstream one. And that the fluid force is expressed as a function of only the velocity ratio of the jet to the upstream, if the side-gap-leakage is less than the mainflow volume. It is pointed out that the separation zone at the back of a valve plate is recovered very rapidly due to momentum transfer effects of side-gap-leakage, and that the outlet flow from a valve plate is not contracted with its width nearly equal to the valve opening one. The experimental formulae of moment coefficient are also presented.
収録刊行物
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- Bulletin of JSME
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Bulletin of JSME 29 (253), 2062-2069, 1986
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
- 1390001206492862976
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- NII論文ID
- 110002358729
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- NII書誌ID
- AA0058509X
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- ISSN
- 18811426
- 00213764
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- Crossref
- CiNii Articles
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- 使用不可