Numerical Study of Flow Field Characteristics in the Trachea During Growth of Human Upper Airways
The development of organs in the human body does not end at birth. During the first five years of life, changes occur in the respiratory tract, not only in terms of its dimensions but also in the way it is used. Efforts to provide non-invasive treatment in the form of medical aerosols administered t...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | MATEC Web of Conferences |
| Subjects: | |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2022/16/matecconf_aenmmte2022_01006.pdf |
| _version_ | 1828122121248702464 |
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| author | Elcner Jakub Jícha Miroslav |
| author_facet | Elcner Jakub Jícha Miroslav |
| author_sort | Elcner Jakub |
| collection | DOAJ |
| description | The development of organs in the human body does not end at birth. During the first five years of life, changes occur in the respiratory tract, not only in terms of its dimensions but also in the way it is used. Efforts to provide non-invasive treatment in the form of medical aerosols administered to children´s lungs during this period must be supported by knowledge of the flow pattern that significantly influences their transport and deposition. Research related to flow patterns in the adult human respiratory tract is quite widespread and the phenomena that occur during inhalation in different parts of the respiratory tract have been widely documented. In the case of the paediatric respiratory tract, research is relatively scarce due to the age of the patient and the desire to minimise interference with the paediatric organism. At the Brno University of Technology, we have the geometry of the airway of a ten-month-old infant, a scaled model of an adult to match the geometry of a five-year-old child based on scientific knowledge and also an adult model of the human respiratory tract. These geometries, together with knowledge of respiratory physiology were used to compare the changes in airflow behaviour that occur in the trachea during the first five years and compare it to fully developed adult human geometry. Computational Fluid Dynamics was used to investigate the model using a Large Eddy Simulation approach. The periods of life captured by the geometries differ not only in their dimensional difference but also in their approach to airway use. The impact of these differences has been captured in the paper. |
| first_indexed | 2024-04-11T14:29:34Z |
| format | Article |
| id | doaj.art-28b10e11937b4190bdb999bad3c24869 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-04-11T14:29:34Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-28b10e11937b4190bdb999bad3c248692022-12-22T04:18:39ZengEDP SciencesMATEC Web of Conferences2261-236X2022-01-013690100610.1051/matecconf/202236901006matecconf_aenmmte2022_01006Numerical Study of Flow Field Characteristics in the Trachea During Growth of Human Upper AirwaysElcner Jakub0Jícha Miroslav1Brno University of Technology, Faculty of Mechanical Engineering, Department of Thermodynamics and Environmental EngineeringBrno University of Technology, Faculty of Mechanical Engineering, Department of Thermodynamics and Environmental EngineeringThe development of organs in the human body does not end at birth. During the first five years of life, changes occur in the respiratory tract, not only in terms of its dimensions but also in the way it is used. Efforts to provide non-invasive treatment in the form of medical aerosols administered to children´s lungs during this period must be supported by knowledge of the flow pattern that significantly influences their transport and deposition. Research related to flow patterns in the adult human respiratory tract is quite widespread and the phenomena that occur during inhalation in different parts of the respiratory tract have been widely documented. In the case of the paediatric respiratory tract, research is relatively scarce due to the age of the patient and the desire to minimise interference with the paediatric organism. At the Brno University of Technology, we have the geometry of the airway of a ten-month-old infant, a scaled model of an adult to match the geometry of a five-year-old child based on scientific knowledge and also an adult model of the human respiratory tract. These geometries, together with knowledge of respiratory physiology were used to compare the changes in airflow behaviour that occur in the trachea during the first five years and compare it to fully developed adult human geometry. Computational Fluid Dynamics was used to investigate the model using a Large Eddy Simulation approach. The periods of life captured by the geometries differ not only in their dimensional difference but also in their approach to airway use. The impact of these differences has been captured in the paper.https://www.matec-conferences.org/articles/matecconf/pdf/2022/16/matecconf_aenmmte2022_01006.pdfhuman upper airwaysflow patterncfdles |
| spellingShingle | Elcner Jakub Jícha Miroslav Numerical Study of Flow Field Characteristics in the Trachea During Growth of Human Upper Airways MATEC Web of Conferences human upper airways flow pattern cfd les |
| title | Numerical Study of Flow Field Characteristics in the Trachea During Growth of Human Upper Airways |
| title_full | Numerical Study of Flow Field Characteristics in the Trachea During Growth of Human Upper Airways |
| title_fullStr | Numerical Study of Flow Field Characteristics in the Trachea During Growth of Human Upper Airways |
| title_full_unstemmed | Numerical Study of Flow Field Characteristics in the Trachea During Growth of Human Upper Airways |
| title_short | Numerical Study of Flow Field Characteristics in the Trachea During Growth of Human Upper Airways |
| title_sort | numerical study of flow field characteristics in the trachea during growth of human upper airways |
| topic | human upper airways flow pattern cfd les |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2022/16/matecconf_aenmmte2022_01006.pdf |
| work_keys_str_mv | AT elcnerjakub numericalstudyofflowfieldcharacteristicsinthetracheaduringgrowthofhumanupperairways AT jichamiroslav numericalstudyofflowfieldcharacteristicsinthetracheaduringgrowthofhumanupperairways |