Analysis of non-explosive bubble growth within a superheated liquid droplet suspended in an immiscible liquid

1985 ◽  
Vol 40 (12) ◽  
pp. 2249-2259 ◽  
Author(s):  
C.T. Avedisian ◽  
K. Suresh
Keyword(s):  
Bubble Growth ◽  
Liquid Droplet ◽  
Immiscible Liquid ◽  
Superheated Liquid

An experimental study of high-pressure bubble growth within multicomponent liquid droplets levitated in a flowing stream of another immiscible liquid

1987 ◽  
Vol 409 (1837) ◽  
pp. 271-285 ◽  
Keyword(s):  
Bubble Growth ◽  
Bubble Formation ◽  
Volatile Component ◽  
Immiscible Liquid ◽  
Ternary Mixtures ◽  
Superheated Liquid ◽  
Vaporization Rate ◽  
Liquid Droplets ◽  
Levitated Droplet ◽  
Flowing Stream

Measurements of vaporization rates of highly superheated liquid droplets are reported at reduced pressures up to 0.4 and reduced temperatures up to 0.95. Binary and ternary mixtures of n -pentane, n -hexane, and n -decane, were studied. The experimental method involved levitating a test droplet in a flowing stream of another immiscible liquid (glycerine). Levitation was achieved by balancing the buoyancy and drag force on the droplet. Bubble formation within the droplet was induced by isothermally decompressing the field liquid to pressures approaching the homogeneous nucleation limit of the levitated droplet. It was observed that a droplet consisting of a binary n -pentane- n -hexane mixture vaporized faster than either an n -pentane or n -hexane droplet, and that the vaporization rate decreased with increasing press­ure. Replacing part of the non-volatile component of a n -pentane— n -hexane mixture by a yet more non-volatile liquid ( n -decane), thus forming a ternary pentane-hexane-decane mixture, was found to increase the vaporization rate above that of a droplet consisting of a binary mixture of the most volatile component with any one of the other two components. The results are discussed from the perspective of bubble growth within a liquid mixture of infinite extent.

Collective Effects on the Growth of Vapor Bubbles in a Superheated Liquid

1984 ◽  
Vol 106 (4) ◽  
pp. 486-490 ◽  
Author(s):  
G. L. Chahine ◽  
H. L. Liu
Keyword(s):  
Collective Behavior ◽  
Bubble Growth ◽  
Theoretical Study ◽  
Pressure Field ◽  
Bubble Radius ◽  
Significant Inhibition ◽  
Collective Effects ◽  
Superheated Liquid ◽  
Vapor Bubbles ◽  
Bubble Interaction

The problem of the growth of a spherical isolated bubble in a superheated liquid has been extensively studied. However, very little work has been done for the case of a cloud of bubbles. The collective behavior of the bubbles departs considerably from that of a single isolated bubble, due to the cumulative modification of the pressure field from all other bubbles. This paper presents a theoretical study on bubble interaction in a superheated liquid during the growth stage. The solution is sought in terms of matched asymptotic expansions in powers of ε, the ratio between rb0, a characteristic bubble radius and l0, the interbubble distance. Numerical results show a significant inhibition of the bubble growth rate due to the presence of interacting bubbles. In addition, the temperature at the bubble wall decreases at a slower rate. Consequently, the overall heat exchange during the bubble growth is reduced.

Numerical Solution of Thermal and Fluid Flow With Phase Change by VOF Method

2000 ◽  
Author(s):  
Hidemi Shirakawa ◽  
Yasuyuki Takata ◽  
Takehiro Ito ◽  
Shinobu Satonaka
Keyword(s):  
Fluid Flow ◽  
Free Surface ◽  
Phase Change ◽  
Calculation Result ◽  
Bubble Growth ◽  
Present Method ◽  
Spherical Shape ◽  
Superheated Liquid ◽  
One Dimensional ◽  
Solidification Problem

Abstract Numerical method for thermal and fluid flow with free surface and phase change has been developed. The calculation result of one-dimensional solidification problem agrees with Neumann’s theoretical value. We applied it to a bubble growth in superheated liquid and obtained the result that a bubble grows with spherical shape. The present method can be applicable to various phase change problems.

Inertial-thermal governed vapor bubble growth in highly superheated liquid

2005 ◽  
Vol 41 (10) ◽  
pp. 855-863 ◽  
Author(s):  
Alexandr A. Avdeev ◽  
Yuri B. Zudin
Keyword(s):  
Vapor Bubble ◽  
Bubble Growth ◽  
Superheated Liquid
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