Airway Resistance


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Airway Resistance
Airway ResistanceAlthough the air that flows through your trachea is not very massive or very viscous, there is a noticeable hydraulic resistance to the flow. This resistance results in a pressure drop along the airway. This pressure decreases along the airways in the direction of flow. This pressure drop is also dependent on the flow rate in the tube, the viscosity of the fluid, and the pattern of flow. There can be no flow along a tube unless there is a pressure difference, or pressure gradient, along the tube.As explained in Sec. 1.4.1, fluid particles move along streamlines during laminar flow. When air flows at low rates in relatively small diameter tubes, a…
Citation
Lee Waite, Ph.D., P.E.; Jerry Fine, Ph.D.: Applied Biofluid Mechanics, Second Edition. Airway Resistance, Chapter (McGraw-Hill Professional, 2017), AccessEngineering Export