Development of Prediction Technology of Two-Phase Flow Dynamics Under Earthquake Acceleration — (4) Measurement of Bubble Deformation Near Wall Under Flow Rate Fluctuation
Development of Prediction Technology of Two-Phase Flow Dynamics Under Earthquake Acceleration — (4) Measurement of Bubble Deformation Near Wall Under Flow Rate Fluctuation
复制标题
地震加速度下两相流动力学预测技术进展——（4）流量脉动下近壁面气泡变形测量
DOI：
10.1115/icone20-power2012-54479
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
K. Takase
中科院分区：
文献类型：
--
作者：
Satoshi Okachi;Masaki Seto;H. Monji;A. Kaneko;Y. Abe;H. Yoshida;K. Takase
为了弄清两相流在地震作用下的运动规律，本文对两相流在地震作用下的运动规律进行了系统的实验研究和数值模拟。本文是地震作用下两相流研究系列之一，主要研究地震作用下两相流的流速波动。在水平管内泡状流和塞状流中加入流量脉动，利用PIV技术和图像处理技术对流动特性进行了测量。观察了管壁附近气泡的变形，给出了气泡周围的速度场。在流量波动条件下也观察到了气泡聚并现象。Copyright © 2012 by ASME
In order to clear the two-phase flow behavior under earthquake, a systematic study is done experimentally and numerically. The present study is one on the series of the study on two-phase flow under earthquake, and focuses on the flow rate fluctuation. The flow rate fluctuation was added to bubbly or plug flow in a horizontal pipe, and flow behavior was measured by PIV and image processing. The bubble deformation near the pipe wall was observed and the velocity field around the bubble was shown. The bubble coalescence was also observed under the flow rate fluctuation condition.Copyright © 2012 by ASME