Countercurrent Gas-Liquid Flow in a PWR Hot Leg under Reflux Cooling (II) : Numerical Simulation of 1/15-Scale Air-Water Tests
スポンサーリンク
概要
- 論文の詳細を見る
When reflux cooling is executed in the case of loss of residual heat removal systems under mid-loop operation of PWR, steam generated in the reactor core and water condensed in the steam generator may form a complicated countercurrent flow in the hot leg. Numerical simulations of air-water countercurrent flows in a 1/15-scale model of the hot leg are carried out in this study to examine the capability of predicting two-phase flow patterns and CCFL characteristics in the hot leg. A three-dimensional two-fluid model implemented in FLUENT6.3.26 is used in the simulations. Good agreements between measured and predicted flow patterns and CCFL characteristics are obtained by using an appropriate set of correlations for the interfacial friction coefficient in the momentum equation of the two-fluid model.
- 2010-02-01
著者
-
MINAMI Noritoshi
Institute of Nuclear Safety System, Inc.
-
MURASE Michio
Institute of Nuclear Safety System, Inc.
-
TOMIYAMA Akio
Graduate School of Engineering, Kobe University
-
Murase Michio
Institute Of Nuclear Safety System Inc.
-
Murase Michio
Institute Of Nuclear Safety System
-
Tomiyama Akio
Graduate School Of Engineering Kobe University
-
Minami Noritoshi
Institute Of Nuclear Safety System Inc.
関連論文
- Countercurrent Gas-Liquid Flow in a PWR Hot Leg under Reflux Cooling (II) : Numerical Simulation of 1/15-Scale Air-Water Tests
- Countercurrent Gas-Liquid Flow in a PWR Hot Leg under Reflux Cooling (I) : Air-Water Tests for 1/15-Scale Model of a PWR Hot Leg
- Evaluation of Incipient Cavitation Erosion on Pipe Walls Downstream from an Orifice
- Effects of Nozzle Geometry on Cavitation in Nozzles of Pressure Atomizers
- Ligament Formation Induced by Cavitation in a Cylindrical Nozzle
- Dimensionless Index for Cavitation in Nozzles of Various Geometries
- A Numerical Method for Two-Phase Flow Based on a Phase-Field Model
- PIV Measurement of Pressure Distributions about Single Bubbles
- Simulation of Bubble Motion under Gravity by Lattice Boltzmann Method
- Numerical Simulation of Countercurrent Gas-Liquid Flow in a PWR Hot Leg under Reflux Cooling
- Void Fraction in a Four by Four Rod Bundle under a Stagnant Condition
- Effects of Swirler Shape on Two-Phase Swirling Flow in a Steam Separator
- Analysis of Noncondensable Gas Recirculation Flow in Steam Generator U-Tubes during Reflux Condensation Using RELAP5
- Experimental Study on Transient Boiling Heat Transfer in an Annulus with a Narrow Gap
- ICONE11-36177 EXPERIMENTAL STUDY ON TRANSIENT BOILING HEAT TRANSFER IN AN ANNULUS WITH A NARROW GAP
- Reflux Condensation Heat Transfer of Steam-Air Mixture under Turbulent Flow Conditions in a Vertical Tube
- Evaluation of Reflux Condensation Heat Transfer of Steam-Air Mixtures under Gas-Liquid Countercurrent Flow in a Vertical Tube
- Numerical Simulation of Countercurrent Gas-Liquid Flow in a PWR Hot Leg under Reflux Cooling
- Shapes and Rising Velocities of Single Bubbles rising through an Inner Subchannel
- H205 EVALUATION OF RELATIVE VELOCITY BETWEEN SINGLE BUBBLES AND LIQUID IN HORIZONTAL TURBULENT PIPE FLOW(Bubble behavior)
- Two-phase Flow Patterns in a Four by Four Rod Bundle
- Cavitation in a Two-Dimensional Nozzle and Liquid Jet Atomization : LDV Measurement of Liquid Velocity in a Nozzle
- Modeling and Validation of In-Vessel Debris Cooling during LWR Severe Accident
- Immersed Boundary-Finite Difference Lattice Boltzmann Method for Liquid-Solid Two-Phase Flows
- Effects of Liquid Properties on CCFL in a Scaled-Down Model of a PWR Hot Leg
- Correlation for countercurrent flow limitation in a PWR hot leg
- Detection of Cavitation States with Microphone Placed Outside Pipe Components
- Influence of Local Flow Field on Flow Accelerated Corrosion Downstream from an Orifice
- Liquid Mixing in a Bubble Column
- Numerical Simulation of Water Temperature in a Spent Fuel Pit during the Shutdown of Its Cooling Systems
- Evaluation of Heat Loss and Water Temperature in a Spent Fuel Pit
- One-Region Model Predicting Water Temperature and Level in a Spent Fuel Pit during Loss of All AC Power Supplies
- Correlation between Flow Accelerated Corrosion and Wall Shear Stress Downstream from an Orifice
- Volume Tracking Simulation of Bubble Motion with Low Spatial Resolution
- Two-Phase Swirling Flow in a Gas-Liquid Separator