scholarly journals Spherical Bubble Collapse in Uniformly Subcooled Liquid

1965 ◽  
Vol 31 (223) ◽  
pp. 458-469 ◽  
Author(s):  
Yoshiya AKIYAMA
Keyword(s):  
Bubble Collapse ◽  
Subcooled Liquid ◽  
Spherical Bubble

scholarly journals Impact effects due to hot vapour bubble collapse in subcooled liquid

2020 ◽  
Vol 1652 ◽  
pp. 012019
Author(s):  
T C Le ◽  
V I Melikhov ◽  
O I Melikhov ◽  
S E Yakush
Keyword(s):  
Bubble Collapse ◽  
Vapour Bubble ◽  
Subcooled Liquid

Bubble Growth and Collapse in Liquid Nitrogen

1968 ◽  
Vol 90 (1) ◽  
pp. 22-26 ◽  
Author(s):  
H. C. Hewitt ◽  
J. D. Parker
Keyword(s):  
Experimental Data ◽  
Liquid Nitrogen ◽  
Bubble Growth ◽  
Theoretical Work ◽  
Nitrogen Pressure ◽  
Superheated Liquid ◽  
Bubble Collapse ◽  
Vapor Bubbles ◽  
Subcooled Liquid ◽  
Nitrogen Bubble

Experimental data on bubble growth in superheated liquid nitrogen, bubble collapse in subcooled liquid nitrogen, and bubble growth with decreasing liquid nitrogen pressure are compared to the theoretical solutions obtained for noncryogens. Vapor bubbles in liquid nitrogen were found to behave quite similarly to vapor bubbles in noncryogens. This paper provides experimental data in two areas where additional theoretical work is needed: Bubble collapse in subcooled liquid, and bubble growth with decreasing pressure.

Influence of Physical Parameters on the Collapse of a Spherical Bubble

2020 ◽  
Author(s):  
Bohua Sun
Keyword(s):  
Surface Tension ◽  
Physical Parameter ◽  
Pressure Difference ◽  
Bubble Formation ◽  
Bubble Collapse ◽  
Physical Parameters ◽  
Liquid Environment ◽  
Spherical Bubble ◽  
Maple Code ◽  
Surrounding Liquid

This paper examines the influence of physical parameters on the collapse dynamics of a spherical bubble filled with diatomic gas ($\kappa=7/5$). The present numerical investigation shows that each physical parameter affects the bubble collapse dynamics differently. After comparing the contribution of each physical parameter, it appears that, of all the parameters, the surrounding liquid environment affects the bubble collapse dynamics the most. Meanwhile, surface tension has the weakest influence and can be ignored in the bubble collapse dynamics. However, surface tension must be retained in the initial analysis since this, as well as the pressure difference jointly control initial bubble formation. As an essential part of this study, a general Maple code is provided.

Vapour bubble collapse in isothermal and non-isothermal liquids

2008 ◽  
Vol 601 ◽  
pp. 253-279 ◽  
Author(s):  
BINZE YANG ◽  
ANDREA PROSPERETTI
Keyword(s):  
Surface Area ◽  
Axial Symmetry ◽  
Dynamic Stress ◽  
Fluid Dynamic ◽  
Spherical Model ◽  
Added Mass ◽  
Bubble Collapse ◽  
Translational Velocity ◽  
Vapour Bubble ◽  
Subcooled Liquid

The motion of a vapour bubble in a subcooled liquid is studied numerically assuming axial symmetry but allowing the surface to deform under the action of the fluid dynamic stress. The flattening of the bubble in the plane orthogonal to the translational velocity increases the added mass and slows it down, while, at the same time, the decreasing volume tends to increase the velocity. The deformation of the interface also increases the surface area exposed to the incoming cooler liquid. The competition among these opposing processes is subtle and the details of the condensation cannot be captured by simpler models, two of which are considered. In spite of these differences, the estimate of the total collapse time given by a spherical model is close to that of the deforming bubble model for the cases studied. In addition to an isothermal liquid, some examples in which the bubble encounters warmer and colder liquid regions are shown.

Thermal and dynamic evolution of a spherical bubble moving steadily in a superheated or subcooled liquid

1998 ◽  
Vol 10 (6) ◽  
pp. 1256-1272 ◽  
Author(s):  
Dominique Legendre ◽  
Jacques Borée ◽  
Jacques Magnaudet
Keyword(s):  
Dynamic Evolution ◽  
Subcooled Liquid ◽  
Spherical Bubble

Dynamics of expansion and collapse of explosive two-dimensional bubbles

2018 ◽  
Vol 859 ◽  
pp. 677-690
Author(s):  
Jérôme Duplat
Keyword(s):  
Water Vapour ◽  
Liquid Water ◽  
Indirect Measurement ◽  
Hot Water ◽  
Bubble Collapse ◽  
Gas Mixture ◽  
Two Dimensional ◽  
Initial Radius ◽  
Spherical Bubble ◽  
Spherical Bubbles

An explosive gas mixture of hydrogen and oxygen is introduced in liquid water between two horizontal walls, forming a flat cylindrical bubble. Ignition and explosion of the bubble lead to a large depressurized cavity that finally implodes. We investigate the dynamics of the bubble collapse, which is qualitatively similar to the collapse of a spherical bubble. It exhibits a slightly weaker singularity than for spherical bubbles. We also analyse the explosion process. Starting with an initial radius $R_{0}$, the bubble reaches a maximal radius $R_{max}$ that depends on the gap thickness $h$ between the two walls: for a thinner gap, the condensation of water vapour is more efficient, the overpressure consecutive to the combustion is weaker, and its duration is shorter. This leads to a smaller maximal radius $R_{max}$. An indirect measurement of the transport coefficient of hot water vapour can be inferred from this observation.

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