Bühlmann decompression algorithm: Difference between revisions

Revision as of 15:05, 21 May 2024

Revision as of 15:10, 21 May 2024

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{{Short description|Mathematical model of tissue inert gas uptake and release with pressure change}}

The Bühlmann desaturation model is a neo-Haldanian model which uses Haldane's or Schreiner's formula for inert gas uptake and an extended expression for tolerated inert gas pressure coupled with a simple parameterised expression for alveolar inert gas pressure and expressions for combining Nitrogen and Helium parameters to which model the way [[inert gases]] enter and leave the human body as the [[ambient pressure]] and inspired gas changes.<ref name="AAB1984" /> Different parameter sets are used to create [[decompression tables]] and in personal dive computers to compute no-decompression limits and decompression schedules for dives in real-time, allowing [[Underwater diving|divers]] to plan the depth and duration for dives and the required [[decompression stops]].

The model (Haldane, 1908)<ref name="haldane" /> assumes [[Decompression theory#Perfusion limited tissues and parallel tissue models|perfusion limited gas exchange and multiple parallel tissue compartments]] and uses an [[Exponential decay|exponential formula]] for in-gassing and out-gassing, both of which are assumed to occur in the dissolved phase.