scholarly journals Air bubble interaction with a submerged, axisymmetric water jet.

1991 ◽  
Vol 90 (4) ◽  
pp. 2318-2318
Author(s):  
Sean M. Cordry ◽  
Ronald A. Roy ◽  
Lawrence A. Crum
Keyword(s):  
Water Jet ◽  
Air Bubble ◽  
Bubble Interaction

Air Bubble Entrainment, Breakup, and Interplay in Vertical Plunging Jets

2018 ◽  
Vol 140 (9) ◽  
Author(s):  
Numa Bertola ◽  
Hang Wang ◽  
Hubert Chanson
Keyword(s):  
High Speed ◽  
Point Explosion ◽  
Air Bubble ◽  
Bubble Breakup ◽  
Jet Impact ◽  
Bubble Entrainment ◽  
Bubble Interaction ◽  
Onset Velocity ◽  
Air Cavities ◽  
Interaction Behaviors

The entrainment, breakup, and interplay of air bubbles were observed in a vertical, two-dimensional supported jet at low impact velocities. Ultra-high-speed movies were analyzed both qualitatively and quantitatively. The onset velocity of bubble entrainment was between 0.9 and 1.1 m/s. Most bubbles were entrained as detached bubbles from elongated air cavities at the impingement point. Explosion, stretching, and dejection mechanisms were observed for individual bubble breakup, and the bubble interaction behaviors encompassed bubble rebound, “kiss-and-go,” coalescence and breakup induced by approaching bubble(s). The effects of jet impact velocity on the bubble behaviors were investigated for impact velocities from 1.0 to 1.36 m/s, in the presence of a shear flow environment.

Experimental Study on the Behavior of a Bubble in the Vicinity of an Air Bubble Attached to a Fixed Structure

2020 ◽  
Author(s):  
Jia-xia Wang ◽  
Kun Liu
Keyword(s):  
Deformation Property ◽  
Low Voltage ◽  
Volume Ratio ◽  
Complex Phenomenon ◽  
Air Bubble ◽  
Large Numbers ◽  
Bubble Interaction ◽  
Fixed Structure ◽  
Bubble Splitting ◽  
Distance Parameter

Abstract The interaction between a spark-generated bubble and a non-oscillating air bubble attached to a horizontal rigid plate is investigated using a low-voltage spark-discharge setup. Large numbers of fascinating and complicated interactions are given rise during two bubble coupling pulsation due to the deformation property endowed to the plate through an air bubble attached. It is found that, under the combined influence of the cavitation and the structure, some complex phenomenon likes the bubble coalescence, air bubble skirt phenomenon, bubble splitting are given rise during the two bubble interaction procedure. The coupling phenomenon between the spark generated bubble, air bubble and the structure are discussed in detailed The mainly attention are paid to the coupled response of an attached quiescent bubble under oscillating bubble, the effect of the distance parameter and volume ratio parameter on the air bubble shapes are analyzed in detail, and the mechanism behind these phenomenon are investigated. Our study can be a useful scheme in the protection of a naval structure from threats induced by an explosion bubble impact loading.

PARTICLE–FREE AIR BUBBLE INTERACTION IN LIQUID

2020 ◽  
Vol 56 (6) ◽  
pp. 990-999 ◽  
Author(s):  
S. A. Kondrat’ev ◽  
N. P. Moshkin
Keyword(s):  
Air Bubble ◽  
Free Air ◽  
Bubble Interaction

Characteristics of Digging Depth With Air-Bubble Water Jet

1984 ◽  
Vol 106 (4) ◽  
pp. 533-538
Author(s):  
M. Ohnishi ◽  
T. Miyamoto ◽  
R. Arioka
Keyword(s):  
Traverse Speed ◽  
Water Jet ◽  
Air Bubble ◽  
Air Content ◽  
Content Ratio ◽  
Submarine Cables

For burying submarine cables under a seabed by a water jet cable burier, it is important to improve digging depth of water jet. This paper discusses digging properties with air-bubble water jet, and clarifies the relation between digging depth and water jet parameters such as traverse speed of nozzle Vn (m/s), air content ratio C, and jet momentum per unit time M (N). It is found from experiment results that the digging depth H* (m) is represented by H*=(1+0.26C0.65)(10.31−4.54Vn)M0.44×10−2.

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