Clear Search sequence regions


  • human (2)
  • lung (2)
  • oxygen (5)
  • oxygen transport (2)
  • phases (1)
  • Sizes of these terms reflect their relevance to your search.

    An in vitro experiment on the dissolved oxygen transport during liquid ventilation by means of measuring global oxygen concentration fields is presented within this work. We consider the flow in an idealized four generation model of the human airways in a range of peak Reynolds numbers of [Formula: see text]-3400 and Womersley numbers of [Formula: see text]-5. Fluorescence quenching measurements were employed in order to visualize and quantify the oxygen distribution with high temporal and spatial resolution during the breathing cycle. Measurements with varying tidal volumes and oscillating frequencies reveal short living times of characteristic concentration patterns for all parameter variations. Similarities to typical velocity patterns in similar lung models persist only in early phases during each cycle. Concentration gradients are quickly homogenized by secondary motions within the lung model. A strong dependency of peak oxygen concentration on tidal volume is observed with considerably higher relative concentrations for higher tidal volumes. © 2022. The Author(s).

    Citation

    Katrin Bauer, Thomas Janke, Rüdiger Schwarze. Oxygen transport during liquid ventilation: an in vitro study. Scientific reports. 2022 Jan 24;12(1):1244

    Expand section icon Mesh Tags

    Expand section icon Substances


    PMID: 35075158

    View Full Text