ICONE11-36115 DEVELOPMENT OF TWO-GROUP INTERFACIAL AREA TRANSPORT EQUATION FOR CONFINED FLOW-II : MODEL EVALUATION
スポンサーリンク
概要
- 論文の詳細を見る
The bubble interaction mechanisms have been analytically modeled in the first paper of this series to provide mechanistic constitutive relations for the two-group interfacial area transport equation, which was proposed to dynamically solve the interfacial area concentration in the two-fluid model. This paper presents the evaluation approach and results of the two-group interfacial area transport equation based on available experimental data obtained in the confined flows at Purdue University, namely, 11 data sets in or near bubbly flow and 13 sets in cap-turbulent and churn-turbulent flows. The two-group interfacial area transport equation is evaluated in steady state, one-dimensional form. Also, since the experiments were performed under adiabatic, air-water two-phase flow conditions, the phase change effect is omitted in the evaluation. To account for the inter-group bubble transport, the void fraction transport equation for Group-2 bubbles is also used to predict the void fraction for Group-2 bubbles. Agreement between the data and the model predictions is promisingly good and the average relative difference for the total interfacial area concentration between the 24 data sets and predictions in within 7%. The model evaluation demonstrates the capability of the two-group interfacial area transport equation focused on the current confined flow to predict the interfacial area concentration over a wide range of flow regimes.
- 一般社団法人日本機械学会の論文
著者
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Ishii Mamoru
Thermal-hydraulics And Reactor Safety Laboratory School Of Nuclear Engineering Purdue University
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Kim Seungjin
Thermal-hydraulics And Reactor Safety Laboratory School Of Nuclear Engineering Purdue University
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Sun Xiaodong
Thermal-hydraulics and Reactor Safety Laboratory School of Nuclear Engineering, Purdue University
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Beus Stephen
Bettis Atomic Power Laboratory, Bechtel Bettis, Inc.
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Beus Stephen
Bettis Atomic Power Laboratory Bechtel Bettis Inc.
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Sun Xiaodong
Thermal-hydraulics And Reactor Safety Laboratory School Of Nuclear Engineering Purdue University
関連論文
- ICONE11-36263 INTERFACIAL STRUCTURES IN DOWNWARD TWO-PHASE BUBBLY FLOW
- ICONE11-36115 DEVELOPMENT OF TWO-GROUP INTERFACIAL AREA TRANSPORT EQUATION FOR CONFINED FLOW-II : MODEL EVALUATION
- ICONE11-36114 DEVELOPMENT OF TWO-GROUP INTERFACIAL AREA TRANSPORT EQUATION FOR CONFINED FLOW-I : MODELING OF BUBBLE INTERACTIONS