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Performing Complex Dives

It is possible to perform any type of multilevel dive in Diver-Sim, as with a dive computer. Subsequent descents/ascents are treated as a new dive with retarded tissue off-gassing & increased Nitrogen affinity. To perform repetitive dives, leave the diver on surface for surface interval, and then press 'r' to recharge the cylinder before diving.

Lengthy dives can be simulated by using the 'r' key to recharge the cylinder.

No stop time:

• Defined as time remaining before diver should reach 6m. The actual remaining time at a certain depth is therefore NST - Ascent Time. The NST calculation is a rough calculation based on current depth and tissue saturations. The compartment nearest to forming DCS will be the limiting factor.

Estimate of DCS:

• Generated by integrating the amount that tissues are over specified pressure gradient limits with time. Thus, it will increase even when the diver has surfaced. This is obviously a difficult area to estimate, and it is offered as a broad indicator of DCS occuring. It is not without its flaws!

Tissue Pressure Gradients Graph

green bars = tissues at lower pressure than ambient (absorbing)

red bars = tissues at higher than ambient (off-gassing)

magenta bars = tissues offgassing at a rate likely to cause DCS (significant bubble formation)

Comment: During offgassing, faster tissues will contribute Nitrogen to the slower tissues. Hence the slower tissues may continue to rise even after surfacing.