Numerical modeling of air flow inside the human nose cavity

Issakhov A.A. Manapova A.K.
25 June 2021 al-Farabi Kazakh State National University

International Journal of Mathematics and Physics
2021 #12 Issue 1 34 - 39 pp.

The complex structure of the human nasal cavity makes it difficult to study the flow of air in it, therefore, at present, mathematical and computer modeling is used for this purpose. These studies are relevant due to the development of inhalation methods for injections drugs into the nose, with the help of which surgery can be performed. Within the framework of the Navier-Stokes, temperature and concentration system of equations using the ANSYS Fluent application, a three-dimensional test calculation of the air flow in the human nasal cavity was carried out at various modes of inhalation, normal inhalation and during exercise. The laminar model was used to close the Navier-Stokes equations, and the SIMPLE method was used to perform the relationship between velocity and pressure. In the graphics package AutoCAD, a geometric three-dimensional model of the nasal cavity was built, reconstructed from images of the nose in coronary sections. As a result of numerical simulation, the fields of velocity, pressure, temperature and concentration were obtained. The obtained results were compared with the experimental data from [10] and the numerical results from [3]. The obtained results match with the experimental data. It was found that the inhaled air is heated and humidified to the state of the nasal tissue, the shells increase the rate of local transfer of heat and moisture by improving mixing and maintaining thin boundary layers, the capacity of a healthy nose exceeds the requirements necessary for conditioning the inhaled air under normal breathing conditions.

Anatomical model of the nose , Coronary planes , Flow structure , Inhaled air conditioning , Method SIMPLE , System of equations Navier-Stokes

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Kazakh-British technical university, Almaty, Kazakhstan

Kazakh-British technical university

10 лет помогаем публиковать статьи Международный издатель

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