Numerical study on the air conditioning characteristics of the human nasal cavity

Computers in Biology and Medicine
Da-Woon KimYang Na

Abstract

The air-conditioning characteristics of the human nasal cavity were investigated using computational fluid dynamics. The wall layer was modeled as a heat conducting layer consisting of water with constant thickness placed on top of epithelial cells. By assuming constant tissue temperature, prescribed to be 36 °C, which is close to the alveolar condition, the proposed wall model yielded a spatially varying surface temperature distribution that is in reasonable agreement with the measurement studies in the literature. The results show that the regions of the main airway between the nasal valve, and the anterior of the middle turbinate were shown to have relatively low temperatures, whereas the superior meatus exhibited relatively high temperature. Water vapor flux evaluated at the surface of the mucus layer was found to be quite large in the region between the posterior of the vestibule and the anterior of the middle turbinate. Comparing the results obtained from the present model to those obtained with a constant surface temperature boundary condition of 32.6 °C or 34 °C revealed that temperature, and absolute humidity of the airflow increased faster through the turbinated airway passage. Even in the presence of sizable differen...Continue Reading

Citations

Jun 23, 2018·PloS One·Cyril KaramaounBenoît Haut
Nov 20, 2019·Allergy, Asthma & Immunology Research·Mu XianCezmi A Akdis
Dec 15, 2019·American Journal of Physical Anthropology·Markus BastirManuel Burgos
Feb 9, 2021·Facial Plastic Surgery : FPS·Rui XavierJorge Spratley
Apr 25, 2021·Respiratory Physiology & Neurobiology·Seung-Kyu Chung, Yang Na
May 22, 2021·Respiratory Physiology & Neurobiology·Hang LiDennis O Frank-Ito
Sep 29, 2020·Computers in Biology and Medicine·Yang NaSeongsu Byun

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