Paper
Dynamic Model of the Air Flow through the Nasal Cavity
- Authors:
- Oleg Grigorovitsh Avrunin; Husham Farouk Ismail Saied
- Abstract
- Studying aerodynamic processes which happen dur-ing the breathing process in the nasal cavity are an actual problem when trying to diagnose the pathological states of the upper respiratory tract [1-5]. Unobstructed air passageways as well as sufficient contact of the air flow with the mucous mem-brane are essential for the correct function of the nose. For that, local flow phenomena, which often cannot be identified by standard diagnostic methods, are important. We design and validated a method for analytical modeling and numerical simulation of the nasal airflow. The velocity and pressure fields in these reconstructed cavities were calculated for the entire range of physiological nasal inspiration using a mathematical model of pulsating air flow in a smooth tube that reflects the main lows of the respiratory process in the nasal cavity. The model will allow receiving data about the losses of the flow due to the friction effect of the air on the walls of nasal cavity, which indirectly serve to know the state of the mucous mem-brane on the cavity, thus as moisture , friability, etc. In this work the authors adapted the model of pulsating fluid flow rate into a nasal cavity, that allowed by numerically evaluation to calculate the energy dissipation during the air passing through the nasal passage.
- Keywords
- Nasal Cavity; Nasal Airflow; Axial Speed; Dissipation Function; Pressure Gradient
- StartPage
- 25
- EndPage
- 29
- Doi
- 10.5963/LSMR0301004