Simulation of air flow in 3-D model of central airways created from CT images
Anatomic complexities within the tracheobronchial tree, have motivated the application of the incompressible Computational Fluid Dynamics code PHI3D to the modeling of air flow. Developed at ORNL, PHI3D implements the new Continuity Constraint Method (CCM). Using a finite-element methodology, comple...
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Veröffentlicht in: | Annals of biomedical engineering 2000-01, Vol.28 (SUPPL. 1), p.S-28 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Anatomic complexities within the tracheobronchial tree, have motivated the application of the incompressible Computational Fluid Dynamics code PHI3D to the modeling of air flow. Developed at ORNL, PHI3D implements the new Continuity Constraint Method (CCM). Using a finite-element methodology, complex geometries can be easily simulated with PHI3D using unstructured grids. A time-accurate integration scheme allows the simulation of both transient and steady-state flows. A realistic geometry model of the central airways for the fluid flow studies were obtained from pig lungs using a new high resolution x-ray computed tomography (MicroCAT) system developed at ORNL for generating 3dimensional images of the internal structure of laboratory animals. |
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ISSN: | 0090-6964 |