Drypatch Characteristics of a Saturated Water Thin Film in a Rectangular Channel using a Flat-Plate-Type Obstacle : Basic Mechanism
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概要
- 論文の詳細を見る
An experimental investigation was performed for drypatch characteristics prediction based on the transient heated surface temperature and static pressure characteristics, using a flat-plate-type obstacle in a rectangular channel. A relationship was obtained between the drypatch occurrence and the transient heated surface temperature in the obstacle and its downstream side using a map of the drypatch occurrence around the obstacle. The mechanism and places of drypatch occurrence were investigated using the boiling number Bo, regarding heat transfer, and the steam Weber number We_v, regarding fluid flow, as factors affecting drypatch phenomena. There was a good correlation for drypatch occurrence between the steam Weber number and higher transient heated surface temperatures.
- 一般社団法人日本機械学会の論文
- 1992-02-15
著者
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Nakamura S
Mechanical Engineering Research Laboratory Hitachi Ltd.
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SHIINA Koji
Mechanical Engineering Research Laboratory, Hitachi, Ltd.
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NAKAMURA Shozo
Mechanical Engineering Research Laboratory, Hitachi, Ltd.
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MIZUSHIMA Yasuo
Mechanical Engineering Research Laboratory, Hitachi, Ltd.
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UOZUMI Hirohito
Hitachi Works, Hitachi, Ltd.
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TAKAKU Kazuo
Hitachi Works, Hitachi, Ltd.
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Takaku Kazuo
Hitachi Works Hitachi Ltd.
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Shiina Koji
Mechanical Engineering Research Laboratory Hitachi Ltd.
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Mizushima Yasuo
Mechanical Engineering Research Laboratory Hitachi Ltd.
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Uozumi Hirohito
Hitachi Works Hitachi Ltd.
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Nakamura Shozo
Mechanical Engineering Research Laboratory Hitachi Ltd.
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