Open AccessJournal Article
Investigation of a submerged cavitating jet behavior, Part one: The phenomenon, detection technique and sono-luminesеnce
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In this article, a visualization of highly submerged cavitating water jet has been done using 4-Quik-05 camera, which included obligatory synchronization technique and different types of lens-objectives.Abstract:
In order to study and understand the jet structure and the behavior of cloud cavitation within time and space, visualization of highly submerged cavitating water jet has been done using 4-Quik-05 camera. This included obligatory synchronization technique and different types of lens-objectives. The influencing parameters, such as: injection pressure, downstream pressure and cavitation number were experimentally proven to be very significant. The recordings of sono-luminescence phenomenon proved the bubble collapse everywhere along the jet. In addition, the effect of temperature on sono-luminescence was a point of investigation.read more
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References
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Journal ArticleDOI
Unstable Cavitation Behavior in a Circular-Cylindrical Orifice Flow
Keiichi Sato,Yasuhiro Saito +1 more
TL;DR: In this paper, the shedding process of separated vortex cavity was examined in detail with the observation using high-speed photography, and the estimation determined from two velocity ratios is shown on the Strouhal number of cloud-like cavity.
Journal ArticleDOI
High-Speed Observation of a Cavitating Jet in Air
TL;DR: In this paper, the authors investigated the appearance of cavitation clouds in high-speed photography and high speed video recording and found that periodical shading of the cavitation cloud was observed and the frequency of the shading was a function of the injection pressure of the low speed water jet.
On cavitation in fluid power
TL;DR: In this article, the effects of cavitation on the system are dealt with and various methods for cavitation detection are presented, including direct detection of cavities, indirect methods can be used, and parameters affecting the degree of formed cavitation erosion are discussed.
Journal ArticleDOI
Depth of penetration of bubbles entrained by a plunging water jet
TL;DR: In this article, a model is proposed to predict the depth of penetration of the air bubbles entrained by a round water jet impacting into a flat, liquid pool, based on the initial jet momentum and the non-monotonic nature of the bubble terminal velocities as a function of their size.
Comparison of Cavitation Phenomena in Transparent Scaled-up Single-Hole Diesel Nozzles
TL;DR: The structure and evolution of cavitation in a transparent scaled-up diesel nozzle having a hole inclined at 90, 85, 80 and 0 degree to the nozzle axis has been investigated using high-speed motion pictures, flash photography and stroboscopic visualization as mentioned in this paper.