Application of ultrasonic doppler method for bubbly flow measurement using two ultrasonic frequencies
Application of ultrasonic doppler method for bubbly flow measurement using two ultrasonic frequencies
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DOI：
10.1016/j.expthermflusci.2005.03.002
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发表时间：
2005-08-01
影响因子：
3.2
通讯作者：
Aritomi, M
中科院分区：
文献类型：
--
作者：
Murakawa, H;Kikura, H;Aritomi, M
本文提出了一种多相流测量新技术。该技术基于超声多普勒方法 (UDM)。使用不同尺寸的超声波换能器（TDX）进行UDM测量，测量的数据明显不同。随着测量体积的变化，速度PDF显着变化。将此方法应用于多相流，可以针对每种速度分布获得尺寸显着不同的几种类型的颗粒。为了在同一时间和同一位置获得每个速度，开发了一种新的多波 TDX。利用多波 TDX，该方法用于垂直管道中气泡流量的测量。为了确认每个速度分布的准确性，计算了速度 PDF。结果表明该方法具有较高的适用性。 (C) 2005 Elsevier Inc. 保留所有权利。
In this paper, a new technique for multi-phase flow measurement is proposed. This technique is based upon an ultrasonic Doppler method (UDM). Using different sizes of ultrasonic transducers (TDXs) for the UDM measurement, the measured data apparently differ. With a change in the measurement volume, the velocity PDF significantly changes. Applying this method for multi-phase flow, several types of particles whose sizes are considerably different can be obtained for each velocity distributions. To obtain each velocity at the same time and at the same position, a new Multi-wave TDX is developed. Using the Multi-wave TDX, this method was utilized for the measurement of bubbly flow in vertical pipe. To confirm the accuracy of each velocity distribution, the velocity PDFs were calculated. The results clarified that this method has high applicability. (C) 2005 Elsevier Inc. All rights reserved.