Bubble in Liquid: Phase Change Under Pressure?

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SUMMARY

The discussion centers on the behavior of bubbles in a viscous fluid, specifically oil, when subjected to high pressure. It is established that as pressure increases, bubbles of air within a hydraulic system compress and shrink due to the pressure differential and surface tension effects. The ability of the bubble to shrink further is contingent upon the specific gas and the conditions outlined in a phase diagram, which dictates the potential for phase change under extreme pressure scenarios.

PREREQUISITES
  • Understanding of fluid dynamics and bubble mechanics
  • Familiarity with phase diagrams and phase change concepts
  • Knowledge of hydraulic systems and pressure effects
  • Basic principles of surface tension in fluids
NEXT STEPS
  • Study phase diagrams for various gases to understand phase change conditions
  • Research the effects of pressure on bubble dynamics in viscous fluids
  • Explore the principles of surface tension and its impact on bubble stability
  • Investigate advanced hydraulic system designs capable of withstanding high pressures
USEFUL FOR

Engineers, physicists, and researchers interested in fluid mechanics, bubble dynamics, and hydraulic systems under high-pressure conditions.

loncin18
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Anyone ,

what the bubble in the fluid will be if we compressed the fluid with high pressure?
for example the fluid is oil with high viscous.
does the bubble change in phase? (condense)
 
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The pressure inside the bubble equals the pressure outside, so what happens depends on how much pressure we're applying and how the material in the bubble behaves when subjected to that pressure.

In the common real life situation in which bubbles of air have been introduced into a hydraulic system, the air compresses and the bubbles shrink when pressure is applied to the system.
 
Strictly the bubble pressure will be higher because of a surface tension term in the force balance equation which acts to try to collapse the bubble. To counter this, there must be a pressure difference across the interface
 
All,

Thanks for your Answer, i also perceived this case in hydraulic term, whatever the pressure inside the bubble but what i exactly want to know is the ability of the bubble to shrink, how far it can go for shrink, let say that i can produce a very high pressure to compress the liquid and the equipment has very high rating of pressure.
does the bubble remain there?or it change its phase ,or shrink to some particular size and cannot be compressed anymore ( like solid )...
sorry for my poor English..
 
The molecules cannot disappear but they can change phase under sufficient pressure. THe exact conditions required to cause a phase change will depend on the gas and are summarised in a phase diagram.
 

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