海底冷泉区气泡流量流速的声学探测机理研究

doi:10.11978/2015112

Abstract

Abstract: There are great quantities of natural gas hydrate beneath seawater, which are giant resources potentially and capable of damaging environment; and special species is also discovered in related area. So, the detection and quantification of an underwater gas release are becoming increasingly important for oceanographic and industrial applications. According to the characters of acoustic attenuation when acoustic wave propagates through bubbles, detection of different flow rate of bubbles was conducted, and result of the relation of bubbles flow rate and acoustic attenuation was presented. In addition, the rising velocity of bubbles was estimated using the relate flow method of two signals received at different depths. Then, the flux of bubbles was inversed by acoustic signal, and the bubble distribution was calculated by the rising velocity and flux, which provided a new method for detection and quantification of undersea bubbles.

Key words: leakage of cold spring, bubble film, acoustic detection, relative flux method

CLC Number:

P733.23

QIN Huawei, FAN Xianghui, CAI Zhen, YE Yanlei. Acoustic detection of flow rate and flux of bubbles in cold spring area of the ocean[J].Journal of Tropical Oceanography, 2016, 35(4): 35-39.

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Acoustic detection of flow rate and flux of bubbles in cold spring area of the ocean

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