![]() It was further developed by David Yount, Eric Maiken, and Erik Baker from 1999 to 2001. ![]() ![]() The Varying Permeability Model was originally developed by Yount and Hoffman in 1986. These are the microscopic physical structures that stabilize free phase gas and that can grow into full fledged extravascular bubbles when the super saturation gradient is sufficient to probe the laplace condition for bubble formation. These super saturation gradients are determined by tracking sets of VPM nuclei (bubble seeds) of a certain initial critical radius. In VPM, ascent ceilings are determined on allowable gradients for bubble formation rather than M-values. The output of a bubble model is similar to many established deep practices such as Pyle Stops, Florida cave practices, DIR, ratio deco plans and others. ![]() The VPM bubble model uses math to simulate and measure micro bubble growth, and set limits accordingly. The Bubble models and similar deep stop profiles, have become the standard for technical and deep diving, with many training agencies including bubble models into thier courses. MultiDeco is available for PC, Mac, Android, iPad, iPhone. The settings allow for customized deep and extended stops, control stop times, airbreaks. Includes Gas Mixer, Turn pressure formula, Layouts for saving complex dive plans, Graphs, data export, etc. MultiDeco makes plans for Lost deco gas, Turn pressures, Range plans, RB bail outs, watches and warnings. MultiDeco calculates all types of Nitrox, Trimix, TriOx, HeliOx, OC, SCR, CCR, RB80, KISS and multilevel dives. ![]() The VPM model is the most widely used bubble model by tech divers today. Hi all Can anyone recommend decent decompression software for use on the PC and a website to download it from. Platforms are either Windows or Pocket PC. Models including RGBM, Buhlmann with gradient factors, M11F6 are available. If you are a recreational diver or an advanced technical diver, GAP-software has the the decompression software for you. GAP-Software, the source for decompression and table generation software. ![]()
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