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首页> 外文期刊>Journal of the Brazilian Society of Mechanical Sciences and Engineering >Experimental investigation of horizontal gas-liquid slug flow by means of wire-mesh sensor
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Experimental investigation of horizontal gas-liquid slug flow by means of wire-mesh sensor

机译：线网传感器水平气液段塞流实验研究

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摘要

The monitoring and visualization of two-phase flow is of great importance either from technical/practical point of view for process control and supervision or from scientific/theoretical point of view, for the understanding of physical phenomenon. A wire-mesh sensor was applied to experimentally investigate two-phase horizontal pipe flow. Furthermore, some physical flow parameters were extracted based on the raw measured data obtained by the sensor. In this article, first, the work principle of wire-mesh sensors is revised and, second, the methodology of flow parameter extraction is described. A horizontal flow test section comprising of a pipe of 26 mm i.d. 9 m long was employed to generate slug flows under controlled conditions. An 8 × 8 wire-mesh sensor installed at the end of the test section delivers cross-sectional images of void fraction. Based on the raw data, mean void fraction, time series of void fraction and characteristic slug frequency are extracted and analyzed for several experiments with different liquid and gas superficial velocities.
机译：从技术/实践的观点进行过程控制和监督，或者从科学/理论的观点进行两相流的监视和可视化对于理解物理现象都非常重要。线网传感器被应用于实验研究两相水平管道流。此外，基于传感器获得的原始测量数据提取了一些物理流量参数。在本文中，首先，对丝网传感器的工作原理进行了修改，其次，描述了流量参数提取的方法。水平流量测试部分包括一个26mm i.d.的管子。在受控条件下，使用9 m长来产生团状流。安装在测试部分末端的8×8线网传感器可提供空隙分数的横截面图像。根据原始数据，提取平均空隙率，空隙率时间序列和特征段塞频率，并进行分析，以进行不同液体和气体表观速度的几次实验。

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