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第 37 卷 第 5 期                                                                        Vol. 37, No.5
             2018 年 9 月                          Journal of Applied Acoustics                 September, 2018

             纪念应崇福院士诞辰100周年




                        声-流耦合空化场观测与量化表征探索                                                       ∗




                        吴鹏飞     1,2,3  白立新      1,3  林伟军      1,2,3†  王秀明     1,2,3   张海澜     1,2,3



                                              (1 中国科学院声学研究所       北京   100190)
                                                (2 中国科学院大学      北京  100049)
                                       (3 北京市海洋深部钻探测量工程技术研究中心            北京   100190)

                摘要 该文利用搭建的高速摄影和空化噪声同步观测的声 -流耦合空化实验平台，观察分析了声 -流耦合场中
                空化云的演化规律及相应的空化噪声特征。通过引入空化状态变量，给出了空化强度的一种新的明确表述，
                并提出了一种基于高速摄影图像分析来测量和表征空化状态变量及空化强度的方法。利用该方法进一步对
                声 - 流耦合空化时间演化周期性和空间强度分布进行了定量计算。结果表明，声 -流耦合空化强度和作用范围
                相比单独声空化和单独水力空化有显著的提升。
                关键词     声空化，水力空化，空化强度，空化噪声，高速摄影
                中图法分类号: O426.4          文献标识码: A          文章编号: 1000-310X(2018)05-0801-10
                DOI: 10.11684/j.issn.1000-310X.2018.05.028





                  Observation and quantitative characterization of hydrodynamic-acoustic
                                                       cavitation



                 WU Pengfei 1,2,3  BAI Lixin 1,3  LIN Weijun 1,2,3  WANG Xiuming 1,2,3  ZHANG Hailan 1,2,3

                               (1 Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China)
                                   (2 University of Chinese Academy of Sciences, Beijing 100049, China)
                     (3 Beijing Deep Sea Drilling Measurement Engineering Technology Research Center, Beijing 100190, China)

                 Abstract  In this paper, bubble clouds in hydrodynamic-acoustic cavitation (HAC) are investigated via an
                 self-built HAC experimental platform with a high-speed camera and a PVDF needle hydrophone. Using this
                 platform, the evolution image and the corresponding noise spectrum of HAC are obtained. Introducing a
                 cavitation state variable, a definition of the cavitation intensity is presented, and a method based on high-
                 speed photography image analysis for cavitation characterization is proposed. The periodic characteristics and
                 intensity distributions of hydrodynamic cavitation, acoustic cavitation and HAC are quantitatively analyzed by
                 this method. It is found that the range of HAC is evidently widened and the strength of HAC is significantly
                 enhanced compared with hydrodynamic cavitation or acoustic cavitation.
                 Key words   Acoustic cavitation, Hydrodynamic cavitation, Cavitation intensity, Cavitation noise, High-speed
                 photograph

             2018-06-16 收稿; 2018-08-02 定稿
             国家自然科学基金项目 (11674350, 11174315)
             ∗
             作者简介: 吴鹏飞 (1991- ), 男, 甘肃平凉人, 博士研究生, 研究方向: 声空化。
             † 通讯作者 E-mail: linwj@mail.ioa.ac.cn
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