全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
化工学报  2013 

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, PP. 3117-3122

Keywords: 纤维光学,四传感器光纤探针,气泡速度矢量,两相流

Full-Text   Cite this paper   Add to My Lib

Abstract:

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。

References

[1]  Kataoka I,Ishii M,Serizawa A.Local formulation and measurement of interfacial area concentration in two phase flow[J].International Journal of Multiphase Flow,1986,12(4):505-529
[2]  Zhao D J,Guo L J,Lin C Z,et al.An experimental study on local interfacial area concentration using a double-sensor probe[J].International Journal of Heat and Mass Transfer,2005,48(10):1926-1935
[3]  Tian Daogui(田道贵),Sun Licheng(孙立成),Gao Fei(高菲),Liu Jingyu(刘靖宇),Sun Bo(孙波).A study on application of optical probes for the measurement of local parameters in two-phase flow[J].Journal of Experiments in Fluid Mechanics(实验流体力学),2012,26(6):91-95
[4]  Jin N D,Xin Z,Wang J,Wang Z Y,Jia X H,Chen W P.Design and geometry optimization of a conductivity probe with a vertical multiple electrode array for measuring volume fraction and axial velocity of two-phase flow[J].Measurement Science and Technology,2008,19(4):1-19
[5]  Zhou Yunlong(周云龙),Zhang Xueqing(张学清),Sun Bin(孙斌).Method for identifying gas/liquid two-phase flow patterns using conductance probes technique and noise recognition of conductance fluctuating signals[J].Chinese Journal of Sensors and Actuators(传感技术学报),2008,21(10):1708-1712
[6]  Zong Y B,Jin N D,Wang Z Y,Gao Z K,Wang C.Nonlinear dynamic analysis of large diameter inclined oil-water two-phase flow pattern[J].International Journal of Multiphase Flow,2010,36(3):166-183
[7]  Du M,Jin N D,Gao Z K,Wang Z Y,Zhai L S.Flow pattern and water holdup measurements of vertical upward oil-water two-phase flow in small diameter pipes[J].International Journal of Multiphase Flow,2012,41:91-105
[8]  Sun Bo(孙波),Sun Licheng(孙立成),Xing Dianchuan(幸奠川),Tian Daogui(田道贵),Liu Jingyu(刘靖宇).Distribution profile of interfacial area concentration in vertical and large circular tubes[J].CIESC Journal(化工学报),2012,63(6):1810-1815
[9]  Shen X Z,Saito Y,Mishima K,Nakamura H.A Study on the characteristics of upward air-water two-phase flow in a large diameter pipe[J].Experimental Thermal and Fluid Science,2006,31(1):21-36
[10]  Shen X Z,Mishima K,Nakamura H.A method for measuring local instantaneous interfacial velocity vector in multi-dimensional two-phase flow[J].Int.J.Multiphase Flow,2008,34(6):502-509
[11]  Lucas G P,Mishra R.Measurement of bubble velocity components in a swirling gas-liquid pipe flow using a local four-sensor conductance probe[J].Meas.Sci.Technol.,2005,16(3):749-758
[12]  Lucas G,Zhao X,Pradhan S.Optimisation of four-sensor probes for measuring bubble velocity components in bubbly air-water and oil-water flows[J].Flow Measurement and Instrumentation,2011,22(1):50-63
[13]  Barrau E,Rivieáre N,Poupot C,Cartellier A.Single and double optical probes in air-water two-phase flows:real time signal processing and sensor performance[J].International Journal of Multiphase Flow,1999,25(2):229-256
[14]  Shen X Z,Matsui R,Mishima K,Nakamura H.Distribution parameter and drift velocity for two-phase flow in a large diameter pipe[J].Nuclear Engineering and Design,2010,240(12):3991-4000
[15]  Rensen J,Luther S,Vries J,Lohse D.Hot-film anemometry in bubbly flow(Ⅰ):Bubble-probe interaction[J].International Journal of Multiphase Flow,2005,31(3):285-301

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133