Abstract

Citation

Researchers should cite this work as follows:

• John Sieben (2022). 1-041-AirToTop-ModelingScenario. SIMIODE, QUBES Educational Resources. doi:10.25334/J3WR-S905

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Article Context

Description

Using a variable ascent rate we will calculate the breathing air required during ascent.

Persons who breathe compressed air will accumulate dissolved nitrogen in their body tissues.  Transition from a high pressure environment to one of less pressure must be carefully controlled so as to reduce the chance of suffering one of the several kinds of decompression sickness.

Recreational SCUBA divers are taught to ascend from depth slowly, giving dissolved nitrogen time to be eliminated in an orderly fashion through the breathing cycle. Everyone agrees that slow ascents are important practices for the health and safety of the diver, but the definition of “slow” has changed over time and between authorities. 

In this project we will look at ascent rates (which are derivatives) and calculate the amount of air required to make a safe ascent from various depths.