CFD Simulation of the Oral-Nasal Flow Partitioning During a Breathing Cycle Based on the Soft Palate Movement

Paz, Carlos; Suárez, Eduardo; Concheiro, M.; Conde, M.

doi:10.1007/978-3-319-59397-5_5

Cited by 2 publications

(1 citation statement)

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“…The method allows for visualizing both bone structures and soft tissues and to segment the airways [7,12,31] by digital tomographic image processing [31,[49][50][51][52]. In addition, CFD models, which are based on computed tomography data, allow to study the aerodynamic characteristics of the upper respiratory tract [7,10,13,23,[53][54][55][56][57][58][59][60]. The works in which the correlation of the results between the data of computed tomography, rhinomanometry and acoustic rhinometry are studied are quite relevant [22,[61][62][63].…”

Section: Analysis Of Existing Methods Of Nasal Breathing Researchmentioning

confidence: 99%

Research Active Posterior Rhinomanometry Tomography Method for Nasal Breathing Determining Violations

Аврунін

Nosova

Abdelhamid

et al. 2021

Sensors

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This study analyzes the existing methods for studying nasal breathing. The aspects of verifying the results of rhinomanometric diagnostics according to the data of spiral computed tomography are considered, and the methodological features of dynamic posterior active rhinomanometry and the main indicators of respiration are also analyzed. The possibilities of testing respiratory olfactory disorders are considered, the analysis of errors in rhinomanometric measurements is carried out. In the conclusions, practical recommendations are given that have been developed for the design and operation of tools for functional diagnostics of nasal breathing disorders. It is advisable, according to the data of dynamic rhinomanometry, to assess the functioning of the nasal valve by the shape of the air flow rate signals during forced breathing and the structures of the soft palate by the residual nasopharyngeal pressure drop. It is imperative to take into account not only the maximum coefficient of aerodynamic nose drag, but also the values of the pressure drop and air flow rate in the area of transition to the turbulent quadratic flow regime. From the point of view of the physiology of the nasal response, it is necessary to look at the dynamic change to the current mode, given the hour of the forced response, so that it will ensure the maximum possible acidity in the legend. When planning functional rhinosurgical operations, it is necessary to apply the calculation method using computed tomography, which makes it possible to predict the functional result of surgery.

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