摘要：In this paper, the wire-mesh sensor (WMS) has been successfully introduced into a typical pressurized water reactor (PWR) prototype 5 x 5 rod bundle channel. Combined with the high-speed camera, the typical flow patterns and phase distribution of air-water two-phase flow in the rod bundles are experimentally studied. The gas superficial velocity is 0.020 ti 1.102 m/s and liquid superficial velocity is 0.041 ti 1.604 m/s. The results indicate that the WMS can accurately identify bubble, cap bubble, cap churn and churn flow. Due to the influence of the wall effect, flow patterns between the subchannels of the rod bundle channel are not completely consistent with the global flow pattern. After evaluating the existing drift-flux models, new correlations of distribution parameter and drift velocity for different flow patterns in rod bundle channel are proposed, which shows a good prediction capability.(c) 2022 Elsevier Ltd. All rights reserved.

关键字：Prototype rod bundle channel; Gas-liquid flow; Void fraction; Drift-flux model; Wire-mesh sensor

ISSN号：0306-4549

卷、期、页：卷: 171

发表日期：2022-06-15

影响因子：1.776000

期刊分区（SCI为中科院分区）：四区

发表期刊名称：ANNALS OF NUCLEAR ENERGY

参与作者：刘帅,刘莉,顾汉洋

第一作者：王科

论文类型：期刊论文

论文概要：刘帅,刘莉,顾汉洋,王科，Experimental study of gas-liquid flow patterns and void fraction in prototype 5 x 5 rod bundle channel using wire-mesh sensor，ANNALS OF NUCLEAR ENERGY，2022，卷: 171

论文题目：Experimental study of gas-liquid flow patterns and void fraction in prototype 5 x 5 rod bundle channel using wire-mesh sensor