Effects of the entrance geometry of the flow channel contraction on pressure drop in single and two-phase flows = 유관의 단면적 축소시의 입구 모양이 단상과 이상 유동의 압력 강하에 미치는 영향

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While flow restriction caused by various obstacles in reactor coolant loop can be treated insignificantly in normal operation condition it may be an important factor which characterize the thermalhydraulic behavior in the reactor when two-phase flow or natural circulation occurs by accidents. Therefore it is necessary that the pressure drop by flow restriction should be predicted as exactly as possible. For this purpose, a series of experiments have been performed to investigate the effect of entrance geometry of flow channel contraction on pressure drop. This subject is directly applicable to such situations as rod spacing devices, core flow channel entrance and U-tube entrance in steam generators. Five test sections were made to simulate typical geometrics of entrance. And the pressure drops were measured for single and two-phase flow in each case of five sections to analyze the effects of various parameters such as flow rate, steam quality, etc. In case of two-phase flow, the experimental results were compared with the predicted value calculated by homogeneous model.
Advisors
Chun, Moon-Hyun전문헌
Description
한국과학기술원 : 핵공학과,
Publisher
한국과학기술원
Issue Date
1985
Identifier
64925/325007 / 000831338
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 핵공학과, 1985.2, [ v, 71 p. ]

Keywords

압력 강화.

URI
http://hdl.handle.net/10203/49098
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=64925&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
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