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Wake Flow of the Ventilation Cylinder

  • Can Kang
  • Haixia Liu
  • Ning Mao
  • Yongchao Zhang
Chapter

Abstract

Injecting air into water serves as an effective measure of generating bubbles. The characteristics of the background water flow must exert a significant effect on the bubbles trapped. In this chapter, it is intended to reveal the bubbly flow pattern downstream of a cylinder. Therefore, a cylinder is installed in the horizontal transparent section of a water tunnel. Particle image velocimetry technique is used to measure flow velocity downstream of the cylinder under no-ventilation condition. Air is injected into water flows through a flow passage inside the cylinder. High-speed photography, in association with a LED light source, is utilized to capture consecutive images of moving bubbles downstream of the cylinder. With the research techniques, it is expected to obtain primary bubble parameters such as velocity, Sauter mean diameter and volume fraction. Furthermore, the relationship between carrier flow characteristics and bubbly flow pattern is expected to be established.

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Copyright information

© Science Press, Beijing and Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Can Kang
    • 1
  • Haixia Liu
    • 2
  • Ning Mao
    • 3
  • Yongchao Zhang
    • 4
  1. 1.School of Energy and Power EngineeringJiangsu UniversityZhenjiangChina
  2. 2.School of Materials Science and EngineeringJiangsu UniversityZhenjiangChina
  3. 3.School of Energy and Power EngineeringJiangsu UniversityZhenjiangChina
  4. 4.School of Energy and Power EngineeringJiangsu UniversityZhenjiangChina

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