海底冷泉渗漏气泡-海水两相介质均匀化方法和实验研究

doi:10.3969/j.issn.1007-7162.2015.04.013

Journal of Guangdong University of Technology ›› 2015, Vol. 32 ›› Issue (04): 72-76.doi: 10.3969/j.issn.1007-7162.2015.04.013

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Method and Experiment of Homogenizing Bubble-seawater Biphase Media at Cool Seeps on Seafloor

Zhang Hao¹, Long Jian-jun^1,2, Di Peng-fei^2,3

1. School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China;2. Sanya Institute of Deep Sea Science and Engineering，Chinese Academy of Sciences，Sanya 572000，China；3．Key Laboratory of Marginal Sea Geology，South China Sea Institute of Oceanology of Chinese Academy of Sciences，Guangzhou 510301，China

Received:2014-12-18 Online:2015-12-04 Published:2015-12-04

Abstract

Abstract: As the method of measuring bubble flow from cool seeps on seafloor using acoustic transmission needs the media of homogeneity of acoustic impedance, the way of quaternary crushing bubbles is proposed and the biphase media of bubble-seawater homogenization device is designed. It includes two parts: bubble collapse and uniform distribution. The function of the biphase media of bubble-seawater homogenization device is that it can break big bubbles into small bubbles and let the small bubbles distribute evenly. The results of experiment show that the biphase media of bubble-seawater homogenization device can break the diameter of bubbles greater than 15 mm into 4 ~ 5 mm and distribute them uniformly. The rising velocity of bubble is 0.3~0.4 m/s, which can satisfy the requirement of the method of measuring bubble flow from cool seeps on seafloor using acoustic transmission.

Key words: acoustic measurement; homogeneity of acoustic impedance; bubble collapse; bubble flow from cool seeps on seafloor

ZHANG Hao, LONG Jian-Jun, DI Peng-Fei. Method and Experiment of Homogenizing Bubble-seawater Biphase Media at Cool Seeps on Seafloor[J].Journal of Guangdong University of Technology, 2015, 32(04): 72-76.