Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Modeling dissolved and free phase gas dynamics under decompression.

B R Wienke1

  • 1Applied Theoretical Physics Division, Los Alamos National Laboratory, N.M. 87545.

International Journal of Bio-Medical Computing
|April 1, 1990
PubMed
Summary

Dissolved and free gases behave differently in tissues under pressure, impacting diving safety. Understanding these gas phase behaviors is crucial for managing decompression and preventing diving accidents.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Computer validation and statistical correlations of a modern decompression diving algorithm.

Computers in biology and medicine·2010
Same author

Diving decompression models and bubble metrics: modern computer syntheses.

Computers in biology and medicine·2009
Same author

Statistical correlations and risk analyses techniques for a diving dual phase bubble model and data bank using massively parallel supercomputers.

Computers in biology and medicine·2008
Same author

Commentary on viewpoint "Heliox, nitrox, and trimix diving; hyperbaric oxygen treatment; and a flaw in Henry's law.

Journal of applied physiology (Bethesda, Md. : 1985)·2007
Same author

Decompression profile and bubble formation after dives with surface decompression: experimental support for a dual phase model of decompression.

Undersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc·2003
Same author

Numerical phase algorithm for decompression computers and application.

Computers in biology and medicine·1992

Area of Science:

  • Physiology
  • Diving Medicine
  • Gas Physics

Background:

  • Dissolved and free gases exhibit distinct behaviors within biological tissues under pressure.
  • The complex interaction between these gas phases influences physiological responses during pressure changes.
  • Existing diving models often focus on dissolved gas, potentially overlooking the effects of free gas phases.

Purpose of the Study:

  • To differentiate the behavior of dissolved versus free gases in tissues under pressure.
  • To elucidate the complex interactions between different gas phases in a pressurized environment.
  • To describe the practical implications of free gas phases on diving safety and decompression protocols.

Main Methods:

  • Comparative analysis of gas behavior in tissues under pressure.

Related Experiment Videos

  • Examination of time scales, gradients, and transport mechanisms for dissolved and free gases.
  • Illustrative computations to demonstrate the impact of gas phase differences.

    • Main Results:

    • Significant differences in behavior, time scales, gradients, and transport exist between dissolved and free gases in tissues.
    • Free gas phases necessitate increased off-gassing pressures and slower ascent rates.
    • Haldane model principles, such as limited supersaturation, must be balanced against free gas buildup.

    Conclusions:

    • The distinct behaviors of dissolved and free gases under pressure have critical implications for diving safety.
    • Practical measures like slower ascents and safety stops are essential when free gas phases are a concern.
    • A comprehensive understanding of both dissolved and free gas dynamics is vital for refining decompression algorithms and ensuring diver safety.