化工学报 ›› 2011, Vol. 62 ›› Issue (2): 315-320.

• 流体力学与传递现象 • 上一篇    下一篇

基于双向图像的水中上升气泡溶解速率分析技术

代晓巍,金良安,迟卫,彦飞,田恒斗   

  1. 海军大连舰艇学院;中国科学院大连化学物理研究所
  • 出版日期:2011-02-05 发布日期:2011-02-05

Analysis technique to dissolution rate of rising bubble in water based on two-direction images

DAI XiaoweiJIN LianganCHI WeiYAN FeiTIAN Hengdou   

  • Online:2011-02-05 Published:2011-02-05

摘要:

鉴于水中上升气泡溶解速率在舰船自消隐气幕等研究中的独特地位和原研究将气泡按球体处理易产生明显误差的问题,在大量观察分析的基础上,提出了基于双向图像的水中上升气泡溶解速率分析技术,进而从技术思想、图像采集与处理、分析模型建立等方面进行了较为深入的研究,得出了具有一般性的数学分析模型。由于该技术将水中上升气泡按更加符合其真实形状的椭球体处理,因而可对其溶解速率进行更为精确的求解,实验结果也证明了其精确性。

关键词: FONT-FAMILY: 宋体, mso-bidi-font-size: 11.0pt, mso-bidi-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-ascii-font-family: Calibri">水中上升气泡;气体溶解速率;椭球体;双向图像

Abstract:

The dissolution rate of rising bubble is important to the research in many fields, and in order to decrease the error because of looking the gas bubble as a sphere in former research, a new analysis technique was put forward.This technique to calculate the dissolution rate of rising bubble in water is based on two-direction images.Its analysis mechanism, image processing and model design were discussed detailedly, then the special mathematic model was set up.This mathematic model can be used to calculate the dissolution rate of rising bubble in water in different situation, and the dissolution rate will be more accurate because the bubbles were analyzed by ellipsoid.And the correctness of this analysis technique was validated by the experiment results.

Key words: FONT-FAMILY: 宋体, mso-bidi-font-size: 11.0pt, mso-bidi-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-ascii-font-family: Calibri">水中上升气泡;气体溶解速率;椭球体;双向图像