지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.1
- 수록면
- 613 - 624 (12page)
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초록· 키워드
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Multi-dimensional two-phase phenomena occur in many industrial applications, particularly in a nuclear reactor during steady operation or a transient period. Appropriate modeling of complicated behavior induced by a multi-dimensional flow is important for the reactor safety analysis results. SPACE, a safety analysis code for thermal hydraulic systems which is currently being developed, was designed to have the capacity of multi-dimensional two-phase thermo-dynamic phenomena induced in the various phases of a nuclear system. To validate the performance of SPACE, a two-dimensional two-phase flow test was performed with slab geometry of the test section having a scale of 1.43 m 1.43 m 0.11 m. The test section has three inlet and three outlet nozzles on the bottom and top gap walls, respectively, and two outlet nozzles installed directly on the surface of the slab. Various kinds of two-dimensional air/water flows were simulated by selecting combinations of the inlet and outlet nozzles. In this study, two-dimensional two-phase void fraction profiles were quantified by measuring the local gap impedance at 225 points. The flow conditions cover various flow regimes by controlling the flow rate at the inlet boundary.
For each selected inlet and outlet nozzle combination, the water flow rate ranged from 2 to 20 kg/s, and the air flow rate ranged from 2.0 to 20 g/s, which corresponds to 0.4 to 4 m/s and 0.2 to 2.3 m/s of the superficial liquid and gas velocities based on the inlet port area, respectively.
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참고문헌 (14)
참고문헌 신청
A. Serizawa / 1993 / Fluid dynamics characteristics of two-phase flow / 박사 / Kyoto University
B.D. Chung / 2007 / PIRT report on a loss of coolant accident of APR1400
C.-H., Song / 1988 / Measurements of void fraction by an improved multi-channel conductance void meter / Nuclear Engineering and Design 184 : 269 ~ 285
D. Barnea / 1980 / Flow pattern characterization in two-phase flow by electrical conductance probe / Int. J. of Multiphase Flow 6 : 387 ~ 397
D.J. Euh / 2010 / Two-dimensional void fraction distribution by measuring impedance for the steady state air/water flow conditions in large slab geometry
B.D. Chung / 2007 / PIRT report on a loss of coolant accident of APR1400
C.-H., Song / 1988 / Measurements of void fraction by an improved multi-channel conductance void meter / Nuclear Engineering and Design 184 : 269 ~ 285
D. Barnea / 1980 / Flow pattern characterization in two-phase flow by electrical conductance probe / Int. J. of Multiphase Flow 6 : 387 ~ 397
D.J. Euh / 2010 / Two-dimensional void fraction distribution by measuring impedance for the steady state air/water flow conditions in large slab geometry
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