CFD Simulation of Airflow Dynamics During Cough Based on CT-Scanned Respiratory Airway Geometries
The airflow dynamics observed during a cough process in a CT-scanned respiratory airway model were numerically analyzed using the computational fluid dynamics (CFD) method. The model and methodology were validated by a comparison with published experimental results. The influence of the cough peak f...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-11-01
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| Series: | Symmetry |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-8994/10/11/595 |
| _version_ | 1811303283458834432 |
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| author | Guiyue Kou Xinghu Li Yan Wang Mouyou Lin Yuping Zeng Xiaopin Yang Yanyan Yang Zhimei Gan |
| author_facet | Guiyue Kou Xinghu Li Yan Wang Mouyou Lin Yuping Zeng Xiaopin Yang Yanyan Yang Zhimei Gan |
| author_sort | Guiyue Kou |
| collection | DOAJ |
| description | The airflow dynamics observed during a cough process in a CT-scanned respiratory airway model were numerically analyzed using the computational fluid dynamics (CFD) method. The model and methodology were validated by a comparison with published experimental results. The influence of the cough peak flow rate on airflow dynamics and flow distribution was studied. The maximum velocity, wall pressure, and wall shear stress increased linearly as the cough peak flow increased. However, the cough peak flow rate had little influence on the flow distribution of the left and right main bronchi during the cough process. This article focuses on the mathematical and numerical modelling for human cough process in bioengineering. |
| first_indexed | 2024-04-13T07:45:11Z |
| format | Article |
| id | doaj.art-ddde9c436ad3453688c97a705b3a3bf9 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-04-13T07:45:11Z |
| publishDate | 2018-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-ddde9c436ad3453688c97a705b3a3bf92022-12-22T02:55:43ZengMDPI AGSymmetry2073-89942018-11-01101159510.3390/sym10110595sym10110595CFD Simulation of Airflow Dynamics During Cough Based on CT-Scanned Respiratory Airway GeometriesGuiyue Kou0Xinghu Li1Yan Wang2Mouyou Lin3Yuping Zeng4Xiaopin Yang5Yanyan Yang6Zhimei Gan7School of Transportation Science and Engineering, Beihang University, Beijing 100083, ChinaSchool of Transportation Science and Engineering, Beihang University, Beijing 100083, ChinaSchool of Transportation Science and Engineering, Beihang University, Beijing 100083, ChinaSchool of Mechanical and Electrical Engineering, Nanchang Institute of Technology, Nanchang 330099, ChinaSchool of Mechanical and Electrical Engineering, Nanchang Institute of Technology, Nanchang 330099, ChinaSchool of Mechanical and Electrical Engineering, Nanchang Institute of Technology, Nanchang 330099, ChinaSchool of Mechanical and Electrical Engineering, Nanchang Institute of Technology, Nanchang 330099, ChinaSchool of Mechanical and Electrical Engineering, Nanchang Institute of Technology, Nanchang 330099, ChinaThe airflow dynamics observed during a cough process in a CT-scanned respiratory airway model were numerically analyzed using the computational fluid dynamics (CFD) method. The model and methodology were validated by a comparison with published experimental results. The influence of the cough peak flow rate on airflow dynamics and flow distribution was studied. The maximum velocity, wall pressure, and wall shear stress increased linearly as the cough peak flow increased. However, the cough peak flow rate had little influence on the flow distribution of the left and right main bronchi during the cough process. This article focuses on the mathematical and numerical modelling for human cough process in bioengineering.https://www.mdpi.com/2073-8994/10/11/595airflow dynamicscoughmodelCFD simulation |
| spellingShingle | Guiyue Kou Xinghu Li Yan Wang Mouyou Lin Yuping Zeng Xiaopin Yang Yanyan Yang Zhimei Gan CFD Simulation of Airflow Dynamics During Cough Based on CT-Scanned Respiratory Airway Geometries Symmetry airflow dynamics cough model CFD simulation |
| title | CFD Simulation of Airflow Dynamics During Cough Based on CT-Scanned Respiratory Airway Geometries |
| title_full | CFD Simulation of Airflow Dynamics During Cough Based on CT-Scanned Respiratory Airway Geometries |
| title_fullStr | CFD Simulation of Airflow Dynamics During Cough Based on CT-Scanned Respiratory Airway Geometries |
| title_full_unstemmed | CFD Simulation of Airflow Dynamics During Cough Based on CT-Scanned Respiratory Airway Geometries |
| title_short | CFD Simulation of Airflow Dynamics During Cough Based on CT-Scanned Respiratory Airway Geometries |
| title_sort | cfd simulation of airflow dynamics during cough based on ct scanned respiratory airway geometries |
| topic | airflow dynamics cough model CFD simulation |
| url | https://www.mdpi.com/2073-8994/10/11/595 |
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