Related Experiment Video
Updated: Apr 15, 2026
08:19
Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
Published on: May 9, 2021
2.9K
Theory of the antibubble collapse
1I. E. Tamm Division of Theoretical Physics, P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninskii Prospekt 53, Moscow 119991, Russia.
Physical Review Letters
|March 28, 2015
Summary
A new theory explains how punctured antibubbles collapse. The air rim
Area of Science:
- Fluid dynamics
- Surface phenomena
Background:
- Antibubbles, with air inside a liquid film surrounded by air, exhibit complex collapse dynamics.
- The behavior of the air rim during collapse is crucial for understanding the overall process.
Purpose of the Study:
- To develop a theoretical model for the collapse of punctured antibubbles.
- To investigate the fluid dynamics of the air rim during collapse.
Main Methods:
- Development of a theoretical framework for antibubble collapse.
- Analysis of high Reynolds number flow for the air rim.
- Derivation and solution of a collapse equation.
Main Results:
- The air rim's motion is not potential flow and has high Reynolds numbers.
- Rim velocity decreases over time due to surface tension and drag.
- A collapse equation was derived and solved, showing good agreement with experiments.
Conclusions:
- The developed theory accurately describes the collapse of punctured antibubbles.
- The interplay of surface tension and hydrodynamic drag governs the air rim's velocity.
Related Concept Videos
01:13Excess Pressure Inside a Drop and a Bubble
3.9K
The shape of a small drop of liquid can be considered spherical, neglecting the effect of gravity. This drop can further be considered as two equal hemispherical drops put together due to surface tension. The forces acting on the spherical drop are due to the pressure of the liquid inside the drop, the pressure due to air outside the drop, and the force due to the surface tension acting on the two hemispherical drops.
3.9K
01:09Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
924
Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the...
924
01:15Theories of Dissolution: Diffusion Layer Model
2.3K
Dissolution, the process by which drug particles dissolve in a solvent, is explained by the diffusion layer model, a theoretical framework that simulates the absorption of oral drugs and allows us to analyze experimental data.
This process starts with a thin layer, saturated with the drug, forming at the interface between the solid and liquid. The solute then diffuses from this layer into the main solution. The Noyes-Whitney equation suggests that the rate of dissolution relies on the diffusion...
This process starts with a thin layer, saturated with the drug, forming at the interface between the solid and liquid. The solute then diffuses from this layer into the main solution. The Noyes-Whitney equation suggests that the rate of dissolution relies on the diffusion...
2.3K
01:45Destabilization of Microtubules
3.9K
The destabilization of microtubules can occur during different stages of the microtubule lifecycle, such as nucleation or elongation. It can take place at either end of the microtubule or in the microtubule lattices as a whole. The lifespan of individual microtubules within a cell varies according to the cell type and stage of the cell cycle. During interphase, the lifespan of the microtubule is about 30 minutes, while during cell division, it is about 15 minutes. In axonal microtubules of...
3.9K
02:07Conservation of Declining Populations
13.6K
Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
13.6K
02:17Microtubule Instability
6.5K
Microtubules are hollow cylindrical filaments having a diameter of approximately 25 nm and a length that varies from 200 nm to 25 μm. GTP-bound tubulin subunits form αβ-heterodimers for microtubule assembly. These core building blocks interact longitudinally, polymerizing into protofilaments. The protofilaments then interact with one another through lateral bonding forces to form stable cylindrical microtubules. These cylindrical filaments are dynamic as they undergo repeated...
6.5K