Effects of Curvature, Taper and Flexibility on Dispersion in Oscillatory Pipe Flow

  • James B. Grotberg
Conference paper


The primary function of the lung is the exchange of oxygen and carbon dioxide. Other substances, such as anesthetics, aerosols, and toxins, are delivered and removed from the lungs by a similar process. Mass transport in the lung depends on convection, diffusion, and their interaction during oscillatory flow. High frequency ventilation (HFV) is an alternative type of ventilation under investigation (Bohn et al. 1980). In HFV, relatively small tidal volumes of air (35–150 ml) are delivered at high frequencies (5–30 Hz), so that pulmonary barotrauma and cardiac impairment are avoided.


Mass Flow Rate Oscillatory Flow Straight Tube Tube Curvature Rigid Tube 
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Copyright information

© Springer-Verlag New York, Inc. 1990

Authors and Affiliations

  • James B. Grotberg
    • 1
  1. 1.Biomedical Engineering DepartmentNorthwestern UniversityEvanstonUSA

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