Effect of geometric variations on pressure loss for a model bifurcation of the human lung airway.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 21354574.
- Also identified by DOI 10.1016/j.jbiomech.2011.02.011.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Characteristics of pressure loss (ΔP) in human lung airways were numerically investigated using a realistic model bifurcation. Flow equations were numerically solved for the steady inspiratory condition with the tube length, the branching angle and flow velocity being varied over a wide range. In general, the ΔP coefficient K showed a power-law dependence on Reynolds number (Re) and length-to-diameter ratio with a different exponent for Re≥100 than for Re<100. The effect of different branching angles on pressure loss was very weak in the smooth-branching airways.
Medical subject headings
- Lung
- Models, Biological
- Respiratory Mechanics
- Respiratory Rate