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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.
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Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
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In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the...
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Related Experiment Video

Updated: Apr 3, 2026

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Growth of bubbles in liquid.

Boris M Smirnov1, R Stephen Berry2

  • 1Joint Institute for High Temperatures, Izhorskaya 13/19, Moscow, 127412 Russia.

Chemistry Central Journal
|September 23, 2015
PubMed
Summary

Gas bubble evolution in liquids is studied, focusing on oxygen in water. Bubble growth, association, and movement to the surface are analyzed to understand fluid dynamics.

Keywords:
Bubbles in liquidFloating-up of bubblesGrowth of bubblesOxygen in water

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Area of Science:

  • Physical Chemistry
  • Fluid Dynamics
  • Chemical Engineering

Background:

  • Analyzes the evolution of gas injected into a liquid, using oxygen in water as a model system.
  • Examines bubble growth via molecule attachment, bubble association, and movement to the liquid-gas interface.
  • Considers gas injection through individual molecule insertion or porous material-mediated bubble formation.

Purpose of the Study:

  • To analyze the behavior and evolution of gas bubbles within a liquid medium.
  • To investigate the mechanisms of bubble growth, association, and transport.
  • To demonstrate a method for visualizing fluid flow using bubble dynamics.

Main Methods:

  • Observing the growth of oxygen bubbles in water.
  • Analyzing bubble association and upward movement.
  • Utilizing bubble size distribution to infer flow patterns.

Main Results:

  • Two gas injection methods are evaluated: individual molecules and small bubbles.
  • Bubble behavior, including growth and floatation, is analyzed in water.
  • Bubbles either disappear or reach the boundary due to turbulent motion.

Conclusions:

  • Bubble size distribution measurement aids in mapping flow current lines.
  • The theory of bubble growth provides a basis for flow visualization.
  • This method allows for the study of fluid dynamics in various regions of a container.