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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2005, Vol. 6 Issue (12): 8-    DOI: 10.1631/jzus.2005.A1412
    
Measurement of oil volume fraction and velocity distributions in vertical oil-in-water flows using ERT and a local probe
Li Hua, Wang Mi, Wu Ying-xiang, Ma Yi-xin, Williams Richard
Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China; Institute of Particle Science and Engineering, University of Leeds, LS2 9JT Leeds, UK
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Abstract  This paper presents the use of a high performance dual-plane electrical resistance tomography (ERT) system and a local dual-sensor conductance probe to measure the vertical upward oil-in-water pipe flows in which the mean oil volume fraction is up to 23.1%. A sensitivity coefficient back-projection (SBP) algorithm was adopted to reconstruct the flow distributions and a cross correlation method was applied to obtain the oil velocity distributions. The oil volume fraction and velocity distributions obtained from both measurement techniques were compared and good agreement was found, which indicates that the ERT technique can be used to measure the low fraction oil-water flows. Finally, the factors affecting measurement precision were discussed.

Key words： Volume fraction and velocity distributions      Oil-in-water flow      Electrical resistance tomography (ERT)      Local probe     
Received: 01 September 2005     
CLC:  TB126  
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Li Hua
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Williams Richard
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Li Hua, Wang Mi, Wu Ying-xiang, Ma Yi-xin, Williams Richard. Measurement of oil volume fraction and velocity distributions in vertical oil-in-water flows using ERT and a local probe. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2005, 6(12): 8-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2005.A1412     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2005/V6/I12/8

[1] Zhu Jian-ping, Wang Bao-liang, Huang Zhi-yao, Li Hai-qing. Design of ERT system[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2005, 6(12): 1446-1448.