nach oben

Medical & Biological Engineering & Computing

Erschienen in:

01.09.2007 | Original Article

A computational fluid dynamics study of inspiratory flow in orotracheal geometries

verfasst von: T. P. Collins, G. R. Tabor, P. G. Young

Erschienen in: Medical & Biological Engineering & Computing | Ausgabe 9/2007

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config

KI-gestützte Suche

Aus

Abstract

Computational fluid dynamics (CFD) has been used to investigate the flow of air through the human orotracheal system. Results from an idealised geometry, and from a patient-specific geometry created from MRI scans were compared. The results showed a significant difference in the flow structures between the two geometries. Inert particles with diameters in the range 1–9 μm were tracked through the two geometries. Particle diameter has proved to be an important factor in defining the eventual destinations of inhaled particles. Results from our calculations match other experimental and computational results in the literature, and differences between the idealised and patient-specific geometries are less significant.

Vorheriger Artikel A procedure to simulate coronary artery bypass graft surgery

Nächster Artikel Comparison of three rheological models of shear flow behavior studied on blood samples from post-infarction patients

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 102.000 Bücher
über 537 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 390 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Maschinenbau + Werkstoffe

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 340 Zeitschriften

aus folgenden Fachgebieten:

Bauwesen + Immobilien
Business IT + Informatik
Finance + Banking
Management + Führung
Marketing + Vertrieb
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Barbini A, Brighenti C, Cevenini G, Gnudi G (2005) A dynamic morphometric model of the normal lung for studying expiratory flow limitation in mechanical ventilation. Ann Biomed Eng 33(4):518–530CrossRef

Cebral JR, Löhner R (2001) From medical images to anatomically accurate finite element grids. Int J Numer Meth Eng 51:985–1008MATHCrossRef

Gosman AD, Ioannides E (1983) Aspects of computer simulation of liquid-fueled combustors. J Energy 7(6):482–490

Green A (2004) Modelling of peak-flow wall shear stress in major airways of the lung. J Biomech 37:661–667CrossRef

Heenan AF, Matilda E, Pollard A, Finlay WH (2003) Experimental measurements and computational modelling of the flow field in an idealised human oropharynx. Exp Fluids 35:70–84CrossRef

Jin HH, Fan JR, Zeng MJ, Cen KF (2007) Large eddy simulation of inhaled particle deposition within the human upper respiratory tract. J Aerosol Sci 38:257–268CrossRef

Ladak HM, Milner JS, Steinman DA (2000) Rapid three-dimensional segmentation of the carotid bifurcation from serial mr images. J Biomech Eng T ASME 122(1):96–99CrossRef

Ma B, Lutchen KA (2006) An anatomically based hybrid computational model of the human lung and its application to low frequency oscillatory mechanics. Ann Biomed Eng 34(11):1691–1704CrossRef

Mitchell J, Nagel M (2004) Particle size analysis of aerosol from medical inhalers. Kona 22:32–65

10.

Morsi SA, Alexander AJ (1972) An investigation of particle trajectories in two-phase flow systems. J Fluid Mech 55(2):193–208MATHCrossRef

11.

Nowak N, Kakade P, Annapragada A (2003) Computational fluid dynamics simulation of airflow and aerosol deposition in human lungs. Ann Biomed Eng 31:374–390CrossRef

12.

Stapleton KW, Guantsch E, Hoskinson M, Finlay WH (2000) On the suitability of k−ε turbulence modelling for aerosol deposition in the mouth and throat: a comparison with experiment. J Aerosol Sci 31:739–749CrossRef

13.

Tabor G, Young PG, Beresford-West T, Benattayallah A (2007) Mesh construction from medical imaging for multiphysics simulation: Heat transfer and fluid flow in complex geometries. Eng App Comp Fluid Mech 2(1):126–135

14.

Wilcox DC (1994) Simulating transition with a two-equation turbulence model. AIAA J 32:247–255MATHCrossRef

Titel: A computational fluid dynamics study of inspiratory flow in orotracheal geometries
verfasst von: T. P. Collins
G. R. Tabor
P. G. Young
Publikationsdatum: 01.09.2007
Verlag: Springer-Verlag
Erschienen in: Medical & Biological Engineering & Computing / Ausgabe 9/2007
Print ISSN: 0140-0118
Elektronische ISSN: 1741-0444
DOI: https://doi.org/10.1007/s11517-007-0238-2

Springer Professional

Abstract

Bitte loggen Sie sich ein, um Zugang zu Ihrer Lizenz zu erhalten.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Springer Professional "Technik"

Springer Professional "Wirtschaft"

Weitere Artikel der Ausgabe 9/2007

Current status and new horizons in Monte Carlo simulation of X-ray CT scanners

Radial strain assessment of the interventricular septum wall by a new technique in healthy subjects

A procedure to simulate coronary artery bypass graft surgery

Computer model for the optimization of AV and VV delay in cardiac resynchronization therapy

ARMin: a robot for patient-cooperative arm therapy

The compensation of perturbing temperature fluctuation in glucose monitoring technologies based on impedance spectroscopy

Premium Partner