Acceleration-induced cavitation and surrounding pressure in a short liquid column

ORAL

Abstract

Cavitation emerges due to sudden acceleration of a liquid (e.g., an impact to the liquid-filled container, the valve operation in a pipe system) and can cause severe damages on surrounding structures. This presentation mainly focuses on the dynamics of acceleration-induced cavitation bubbles and surrounding liquid pressure in a liquid-filled container. We firstly show the criteria for the onset of the acceleration-induced cavitation in a short liquid column. We then investigate the interaction between the dynamics of cavitation bubbles and the pressure field using a high-speed camera and a pressure sensor. Finally, we discuss the impulsive force upon the collapse of cavitation bubbles.

*A part of this presentation is financially supported by JSPS KAKENHI Grant numbers 17H01246 and 16J08521.

Presenters

  • Akihito Kiyama

    • Tokyo Univ of Agri & Tech

Authors

  • Akihito Kiyama

    • Tokyo Univ of Agri & Tech
  • Keisuke Hayasaka

    • Tokyo Univ of Agri & Tech
  • Hiroyuki Nishida

    • Tokyo Univ of Agri & Tech
  • Yoshiyuki Tagawa

    • Tokyo Univ of Agri & Tech
    • Tokyo University of Agriculture and Technology
    • Tokyo Univ of Agri & Tech, Tokyo Univ of Agri & Tech