Periodical shedding of cavitation cloud induced by a cavitating jet

H. Kamisaka, H. Soyama

Research output: Contribution to conferencePaperpeer-review

4 Citations (Scopus)

Abstract

A high-speed submerged water jet with cavitation, i.e., a cavitating jet, is useful for cleaning and mechanical surface treatment. It was already reported that the cloud was shedding periodically. Although the similarity law of the free jet was reported, the shedding frequency of the impinging jet was not clear. As the size and the shedding frequency of the cloud affects aggressive intensity of the jet, it is worthwhile to investigate the shedding frequency of the impinging jet. In the present paper, the free and the impinging cavitating jet were observed by a high speed video camera changing with injection pressure p1 in the range of 20 MPa ≤ p1 ≤ 70 MPa, and the shedding frequency of the cloud was analysed by image processing. It was found that the shedding frequency of both free and impinging jet was decreased with the injection pressure at p1 ≥ 40 MPa.

Original languageEnglish
Pages111-123
Number of pages13
Publication statusPublished - 2018
Event24th International Conference on Water Jetting - Manchester, United Kingdom
Duration: 2018 Sep 52018 Sep 7

Conference

Conference24th International Conference on Water Jetting
CountryUnited Kingdom
CityManchester
Period18/9/518/9/7

ASJC Scopus subject areas

  • Water Science and Technology

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