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Thread: WOB difference between air and trimix

  1. #21
    RBW Member ALangman is an unknown quantity at this point ALangman's Avatar
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    Re: WOB difference between air and trimix

    Thanks Dr!


    Sent from my iPhone using Tapatalk

  2. #22

    Re: WOB difference between air and trimix

    Quote Originally Posted by Lab Rat  View Original Post
    Maybe just new data?

    Either way, thanks for putting this out Simon!

    Also, know that Brett Stolp has a bunch of data on this from the early 80s dives at the chamber, but, as I recall, it is all about max tolerable density and not density at which CO2 retention increases. They did pull blood gasses at depth though and that included the workup dives if I remember right.


    -Richard


    Is it a laminar flow thing through smaller bronchiols and disrupted gas flow into alveoli due to increased density alone?



    where:
    inlet pressure
    outlet pressure
    is the length of tube
    is the viscosity
    is the radius
    is the volume of the fluid at outlet pressure
    is the velocity of the fluid at outlet pressure
    What does d & dt represent?

  3. #23

    Re: WOB difference between air and trimix

    Quote Originally Posted by scubainchicago  View Original Post
    What does d & dt represent?
    Math...

    It's the mathematical symbol for a derivative. In this case it is the derivative of V (volume) with respect to t (time).

  4. #24
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    Re: WOB difference between air and trimix

    Quote Originally Posted by scubainchicago  View Original Post
    What does d & dt represent?
    Think of it as the rate of change of volume compared to a change in time at a precise instant in time.

  5. #25
    RBW Member rjack will become famous soon enough rjack will become famous soon enough rjack will become famous soon enough rjack's Avatar
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    Meg

    Re: WOB difference between air and trimix

    Quote Originally Posted by Steve Schultz  View Original Post
    Think of it as the rate of change of volume compared to a change in time at a precise instant in time.
    ^^ this


    Visually/graphically its the slope of a changing variable

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