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Content Provider | IEEE Xplore Digital Library |
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Author | Xiao Bing Chen Heow Pueh Lee Chong, V. De Yun Wang |
Copyright Year | 2009 |
Description | Author affiliation: Department of Mechanical Engineering, National University of Singapore, Singapore 117576 (Xiao Bing Chen; Heow Pueh Lee) || Department of Diagnostic Radiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117576 (Chong, V.) || Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117576 (De Yun Wang) |
Abstract | The purpose of this article is to analyze the effects of septal deviation on the aerodynamic flow pattern compared with a normal nose by Computational Fluid Dynamics (CFD) tools. The software MIMICS 12.0 was used to perform the image segmentation and meshed model generation from CT scans. Thereafter high resolution 3D volume meshes comprising boundary layer effect and computational domain exterior to the nose were constructed. Numerical simulations were then carried out using FLUENTS for computational fluid dynamics simulations. The overall flow was assumed to be incompressible, quasi-steady and laminar. The same oxygen (flow rate) amount with a normal nose for a deviated one was also assumed. The results were shown with the contours of velocity for exhalation and inhalation. The distribution of wall shear stress and flow partitioning were also investigated. It was found that the existence of “dead space” might cause turbulence due to the deviated nasal septal structures. |
Starting Page | 1 |
Ending Page | 2 |
File Size | 2258609 |
Page Count | 2 |
File Format | |
ISBN | 9781424443628 |
DOI | 10.1109/NEBC.2009.4967691 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2009-04-03 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Numerical simulation Nose Computational fluid dynamics Pattern analysis Aerodynamics Software performance Image segmentation Computed tomography Computational modeling Stress |
Content Type | Text |
Resource Type | Article |
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