Flow modeling of actual human nasal cavity for various breathing conditions
Flow in the human nasal cavity varies when the body is under various physical activities. However, in order to visualize the flow pattern, traditional in-vivo technique may disturb the flow patterns. In this study, computational method was used to model the flow in the nasal cavity under various bre...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Published: |
2012
|
| Subjects: |
| _version_ | 1796859066434191360 |
|---|---|
| author | Mokhtar, Nur Hazwani Yaakob, M. S. Osman, K. Abdul Kadir, Mohammed Rafiq W. Abdullah, W. K. Haron, J. |
| author_facet | Mokhtar, Nur Hazwani Yaakob, M. S. Osman, K. Abdul Kadir, Mohammed Rafiq W. Abdullah, W. K. Haron, J. |
| author_sort | Mokhtar, Nur Hazwani |
| collection | ePrints |
| description | Flow in the human nasal cavity varies when the body is under various physical activities. However, in order to visualize the flow pattern, traditional in-vivo technique may disturb the flow patterns. In this study, computational method was used to model the flow in the nasal cavity under various breathing conditions. Image from CT-Scan was used to mimic the actual cavity geometry. The image was computationally constructed and EFD. Lab was used to predict the flow behavior. Steady incompressible flow was considered for all case studies. The result shows that, for all breathing conditions, vortices were observed in the turbinate region which confirms the turbinate functions as a filter before the flow reaches the olfactory area. Larger vortices were detected when the flow rates were higher. In the olfactory region, the flow velocities were shown to be dramatically dropped to the ideal odorant uptake velocity range for all cases studied. This study had successfully produced visual description of air flow pattern in the nasal cavity. |
| first_indexed | 2024-03-05T19:21:41Z |
| format | Article |
| id | utm.eprints-46998 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:21:41Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | utm.eprints-469982017-09-28T01:39:11Z http://eprints.utm.my/46998/ Flow modeling of actual human nasal cavity for various breathing conditions Mokhtar, Nur Hazwani Yaakob, M. S. Osman, K. Abdul Kadir, Mohammed Rafiq W. Abdullah, W. K. Haron, J. TL Motor vehicles. Aeronautics. Astronautics Flow in the human nasal cavity varies when the body is under various physical activities. However, in order to visualize the flow pattern, traditional in-vivo technique may disturb the flow patterns. In this study, computational method was used to model the flow in the nasal cavity under various breathing conditions. Image from CT-Scan was used to mimic the actual cavity geometry. The image was computationally constructed and EFD. Lab was used to predict the flow behavior. Steady incompressible flow was considered for all case studies. The result shows that, for all breathing conditions, vortices were observed in the turbinate region which confirms the turbinate functions as a filter before the flow reaches the olfactory area. Larger vortices were detected when the flow rates were higher. In the olfactory region, the flow velocities were shown to be dramatically dropped to the ideal odorant uptake velocity range for all cases studied. This study had successfully produced visual description of air flow pattern in the nasal cavity. 2012 Article PeerReviewed Mokhtar, Nur Hazwani and Yaakob, M. S. and Osman, K. and Abdul Kadir, Mohammed Rafiq and W. Abdullah, W. K. and Haron, J. (2012) Flow modeling of actual human nasal cavity for various breathing conditions. AIP Conference Proceedings, 1440 . pp. 692-699. ISSN 0094-243X http://dx.doi.org/10.1063/1.4704279 |
| spellingShingle | TL Motor vehicles. Aeronautics. Astronautics Mokhtar, Nur Hazwani Yaakob, M. S. Osman, K. Abdul Kadir, Mohammed Rafiq W. Abdullah, W. K. Haron, J. Flow modeling of actual human nasal cavity for various breathing conditions |
| title | Flow modeling of actual human nasal cavity for various breathing conditions |
| title_full | Flow modeling of actual human nasal cavity for various breathing conditions |
| title_fullStr | Flow modeling of actual human nasal cavity for various breathing conditions |
| title_full_unstemmed | Flow modeling of actual human nasal cavity for various breathing conditions |
| title_short | Flow modeling of actual human nasal cavity for various breathing conditions |
| title_sort | flow modeling of actual human nasal cavity for various breathing conditions |
| topic | TL Motor vehicles. Aeronautics. Astronautics |
| work_keys_str_mv | AT mokhtarnurhazwani flowmodelingofactualhumannasalcavityforvariousbreathingconditions AT yaakobms flowmodelingofactualhumannasalcavityforvariousbreathingconditions AT osmank flowmodelingofactualhumannasalcavityforvariousbreathingconditions AT abdulkadirmohammedrafiq flowmodelingofactualhumannasalcavityforvariousbreathingconditions AT wabdullahwk flowmodelingofactualhumannasalcavityforvariousbreathingconditions AT haronj flowmodelingofactualhumannasalcavityforvariousbreathingconditions |