利用金属丝网传感器研究俯冲射流实验中空隙率的分布

Q4 Engineering

传感技术学报 Pub Date : 2015-07-01 DOI:10.3969/J.ISSN.1004-1699.2015.07.012

Xingtao Wang, Fang-Chao Tian, Jascha Eisemberg, H. Prasser

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引用次数: 0

摘要

俯冲射流是一种气液两相流动现象，是将硼酸与去离子水充分混合的有效方法，适用于压水堆(PWR)加压热冲击(PTS)事故场景的研究。当液体射流撞击水面时，空气被夹带，在夹带空气的过程中，水面产生气泡。气泡夹带对混合过程有重要的影响。研究了射流长度和射流流量对孔隙率分布的影响。设计了一种可移动的三层金属丝网传感器(WMS)，用于测量瞬时二维气体组分序列，该传感器具有高分辨率的空间和时间，并从数据中导出空隙率分布。对比了不同射流长度和不同流量下的平均空隙率。

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Study on void fraction distribution of plunging jet experiment with wire mesh sensor

The plunging jet is a phenomenon of two phase gas-liquid flow, which could be an effective method to sufficiently mix boric acid with de-ionized water, and is suitable for studying the Pressurized Thermal Shock (PTS) accident scenario of Pressurized Water Reactors(PWR). The air is entrained when the liquid jet hits the water surface, which generates bubbles during the air entrainment. This bubble entrainment has a crucial influence on the mixing process. The distribution of void fraction was studied in dependence of the jet length and flow rate. A movable three-layer Wire Mesh Sensor (WMS) is designed to measure sequences of instantaneous two-dimensional gas fractions with a high-resolution in space and time, which, from the data, derives the void fraction distributions. Comparisons of average void fraction are carried out with different jet lengths and flow rates.

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来源期刊

传感技术学报 Engineering-Electrical and Electronic Engineering

CiteScore

0.60

自引率

0.00%

发文量

7645

期刊介绍：