四传感器光纤探针测量气泡速度矢量模型

doi:10.3969/j.issn.0438-1157.2013.09.006

化工学报 ›› 2013, Vol. 64 ›› Issue (9): 3117-3122.DOI: 10.3969/j.issn.0438-1157.2013.09.006

四传感器光纤探针测量气泡速度矢量模型

田道贵, 阎昌琪, 孙立成

哈尔滨工程大学核安全与仿真技术国防重点学科实验室, 黑龙江哈尔滨 150001

收稿日期:2013-01-20 修回日期:2013-04-28 出版日期:2013-09-05 发布日期:2013-09-05
通讯作者: 孙立成
作者简介:田道贵(1988- ),男,博士研究生。
基金资助:
国家自然科学基金项目(51076034,11175050);中央高校基本科研业务费专项资金项目(HEUCFZ1122);重点实验室基金项目(HEUFN1102)。

Model of bubble velocity vector measurement using four-sensor optical fiber probe

TIAN Daogui, YAN Changqi, SUN Licheng

National Defense Key Subject Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, Heilongjiang, China

Received:2013-01-20 Revised:2013-04-28 Online:2013-09-05 Published:2013-09-05
Supported by:
supported by the National Natural Science Foundation of China(51076034,11175050),the Fundamental Research Funds for the Central Universities(HEUCFZ1122)and the Foundation for Key Laboratory of Nuclear Safety(HEUFN1102).

摘要/Abstract

摘要： 光纤传感器作为纤维光学领域中的新技术,在两相流动局部参数测量中得到了越来越广泛的应用。在假设气泡对称面垂直于气泡运动方向的基础上,对四传感器探针测量局部瞬时气泡速度的数学原理进行了详细推导,给出了新的计算气泡速度矢量的方法和模型,并运用自制的四传感器光纤探针,对气液两相流动中的气泡运动速度和方向进行了测量。实验中通过探针方法测得气相流速相对于流量计测量值的平均偏差为9%,表明新的探针测量方法精度较高,能够用于两相流中气泡速度矢量测量。进一步的实验研究表明,不同流动条件下,局部空泡份额及界面面积浓度(IAC)沿通道径向呈“壁峰型”或“核峰型”的分布规律。

关键词: 纤维光学, 四传感器光纤探针, 气泡速度矢量, 两相流

Abstract: Optical fiber sensor,as a new technique in the field of fiber optics,has received more and more attention in the measurement of local parameters in two-phase flow.The mathematical principle of the local instantaneous bubble velocity vector measurement using four-sensor probe was deduced by assuming a plane of symmetry of bubbles normal to the motion,and a new mathematical model was presented.An investigation was conducted for obtaining bubble velocity vector in two-phase flow by using a self-made four-sensor optical fiber probe.By comparing the superficial gas velocity obtained from the new probe method with that measured by flow meter,it was found that average deviation was about 9%,indicating a relatively high metrical precision of the new probe method.A further study indicated that local void fraction and interfacial area concentration(IAC)showed a wall peak or a core peak distribution in the radial direction under different flow conditions.

Key words: fiber optics, four-sensor optical fiber probe, bubble velocity vector, two-phase flow

中图分类号:

TL334

田道贵, 阎昌琪, 孙立成. 四传感器光纤探针测量气泡速度矢量模型[J]. 化工学报, 2013, 64(9): 3117-3122.

TIAN Daogui, YAN Changqi, SUN Licheng. Model of bubble velocity vector measurement using four-sensor optical fiber probe[J]. CIESC Journal, 2013, 64(9): 3117-3122.

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四传感器光纤探针测量气泡速度矢量模型

Model of bubble velocity vector measurement using four-sensor optical fiber probe

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