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Image Caption
Contours of normalized relative helicity at a cut just downstream of the first bronchi branch illustrating the secondary flows present. (larger image)
  
From:
Application: Pulmonary CFD Modeling
Posted Wed October 15, 2003 @03:23PM
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Application Robert Kunz wrote in about his work titled "Modeling of Oxygen Uptake and Particle Deposition in the Human Lung using Homogeneous and Two-Fluid Models".

Researchers at Penn State University Applied Research Laboratory (USA), Center for Medical Diagnostic Systems and Visualization (Germany), and Image Processing Laboratory, Institute of Anatomy and Cell Biology (Germany), are using modern medical imaging technology and three-dimensional, time accurate mul­tiphase CFD to model oxygen uptake and particle deposition in the human respiratory system.

A physically accurate representation of the trachea and most of the convective regime bronchi (up to generation 13) are obtained using high-resolution computed tomography (HRCT) of a rubber cast of an adult human tracheobronchial tree (Fig. 1). A triangulated model of this data is used as a bounding surface for hybrid unstructured meshes generated using the ICEM CFD 4.2 package.

( Read Full Article )


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