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Related Concept Videos

Application of Integration: Problem Solving01:30

Application of Integration: Problem Solving

The process of breathing involves the periodic intake and expulsion of air, known as the respiratory cycle, which typically lasts about five seconds. Modeling the volume of air inhaled into the lungs as a function of time provides insight into both the dynamics and efficiency of pulmonary ventilation. This volume is determined by integrating the airflow rate over time, which captures the cumulative effect of air entering the lungs.Sinusoidal Model of AirflowAirflow during respiration is not...
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Related Experiment Video

Updated: May 27, 2026

Modeling and Simulations of Olfactory Drug Delivery with Passive and Active Controls of Nasally Inhaled Pharmaceutical Aerosols
15:04

Modeling and Simulations of Olfactory Drug Delivery with Passive and Active Controls of Nasally Inhaled Pharmaceutical Aerosols

Published on: May 20, 2016

Numerical simulation and nasal air-conditioning.

Tilman Keck1, Jörg Lindemann

  • 1Department of Otorhinolaryngology, Head and Neck Surgery, Elisabethinen-Krankenhaus GmbH, Academic Hospital of the University of Graz, Austria.

GMS Current Topics in Otorhinolaryngology, Head and Neck Surgery
|November 11, 2011
PubMed
Summary
This summary is machine-generated.

Nasal airways optimally condition air for lung function, but in vivo studies are limited. Numerical simulations offer new insights into nasal air conditioning and the effects of surgery.

Keywords:
CFDair flowclimatisationnosenumerical simulation

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Area of Science:

  • Biomedical Engineering
  • Respiratory Physiology

Background:

  • Nasal airways are crucial for heating, humidifying, and cleansing inhaled air, ensuring optimal pulmonary gas exchange.
  • Challenges in in vivo measurements due to complex nasal anatomy limit spatial and temporal resolution, hindering comprehensive understanding.

Purpose of the Study:

  • To review technical expertise in in vivo nasal air conditioning.
  • To synthesize novel information from numerical simulations of nasal airways.
  • To assess the current knowledge on how nasal and sinus surgery impacts nasal air conditioning.

Main Methods:

  • Review of existing literature on in vivo nasal air conditioning techniques.
  • Analysis of findings from numerical simulation studies on intranasal heating and humidification.
  • Evaluation of research on the effects of surgical interventions on nasal airflow and conditioning.

Main Results:

  • In vivo measurements provide limited data due to accessibility and resolution issues.
  • Numerical simulations offer valuable predictions and insights into complex intranasal processes.
  • Surgery can significantly alter nasal air conditioning capabilities.

Conclusions:

  • Current in vivo methods are insufficient for a complete assessment of nasal air conditioning.
  • Numerical simulations are essential tools for understanding intranasal dynamics.
  • Further research is needed to fully elucidate the impact of surgery on nasal function.