Impact of Varying Types of Nasal Septal Deviation on Nasal Airflow Pattern and Warming Function: A Computational Fluid Dynamics Analysis

Lifeng Li, Hongrui Zang, Demin Han, Nyall R. London

Research output: Contribution to journalArticle

Abstract

Nasal septal deviations (NSD) have been categorized into 7 types. The effect of these different deviations on airflow pattern and warming function has not been fully investigated. The purpose of this study was to utilize a computational fluid dynamics approach to assess the impact of NSD of varying types on nasal airflow and warming function. Patients with each type of NSD were enrolled in the study, and a normal participant as the control. Using a computational fluid dynamics approach, modeling of nasal function was performed. Indices of nasal function including airflow redistribution, total nasal resistance, airflow velocity, and airflow temperature were determined. Among all types of NSD, the maximal velocity and total nasal resistance were markedly higher in type 4 and 7 deviations. The flow partition and velocity distribution were also altered in type 4 and 7 as well as type 2 and 6 deviations. Airflow in all categories of NSD was fully warmed to a similar degree. From a computational aerodynamics perspective, the type of septal deviation may contribute to altered airflow characteristics. However, warming function was similar between septal deviation types. Future studies will help to ascertain the functional importance of septal deviation types and the applicability of these computational studies.

Original languageEnglish (US)
JournalEar, Nose and Throat Journal
DOIs
StateAccepted/In press - Jan 1 2019

Fingerprint

Hydrodynamics
Nose
Temperature

Keywords

  • airflow pattern
  • computational fluid dynamics
  • nasal septal deviation
  • warming function

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

@article{354bafa843a64f0dbe1f0b546949bb7e,
title = "Impact of Varying Types of Nasal Septal Deviation on Nasal Airflow Pattern and Warming Function: A Computational Fluid Dynamics Analysis",
abstract = "Nasal septal deviations (NSD) have been categorized into 7 types. The effect of these different deviations on airflow pattern and warming function has not been fully investigated. The purpose of this study was to utilize a computational fluid dynamics approach to assess the impact of NSD of varying types on nasal airflow and warming function. Patients with each type of NSD were enrolled in the study, and a normal participant as the control. Using a computational fluid dynamics approach, modeling of nasal function was performed. Indices of nasal function including airflow redistribution, total nasal resistance, airflow velocity, and airflow temperature were determined. Among all types of NSD, the maximal velocity and total nasal resistance were markedly higher in type 4 and 7 deviations. The flow partition and velocity distribution were also altered in type 4 and 7 as well as type 2 and 6 deviations. Airflow in all categories of NSD was fully warmed to a similar degree. From a computational aerodynamics perspective, the type of septal deviation may contribute to altered airflow characteristics. However, warming function was similar between septal deviation types. Future studies will help to ascertain the functional importance of septal deviation types and the applicability of these computational studies.",
keywords = "airflow pattern, computational fluid dynamics, nasal septal deviation, warming function",
author = "Lifeng Li and Hongrui Zang and Demin Han and London, {Nyall R.}",
year = "2019",
month = "1",
day = "1",
doi = "10.1177/0145561319872745",
language = "English (US)",
journal = "Ear, Nose and Throat Journal",
issn = "0145-5613",
publisher = "Medquest Communications LLC",

}

TY - JOUR

T1 - Impact of Varying Types of Nasal Septal Deviation on Nasal Airflow Pattern and Warming Function

T2 - A Computational Fluid Dynamics Analysis

AU - Li, Lifeng

AU - Zang, Hongrui

AU - Han, Demin

AU - London, Nyall R.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Nasal septal deviations (NSD) have been categorized into 7 types. The effect of these different deviations on airflow pattern and warming function has not been fully investigated. The purpose of this study was to utilize a computational fluid dynamics approach to assess the impact of NSD of varying types on nasal airflow and warming function. Patients with each type of NSD were enrolled in the study, and a normal participant as the control. Using a computational fluid dynamics approach, modeling of nasal function was performed. Indices of nasal function including airflow redistribution, total nasal resistance, airflow velocity, and airflow temperature were determined. Among all types of NSD, the maximal velocity and total nasal resistance were markedly higher in type 4 and 7 deviations. The flow partition and velocity distribution were also altered in type 4 and 7 as well as type 2 and 6 deviations. Airflow in all categories of NSD was fully warmed to a similar degree. From a computational aerodynamics perspective, the type of septal deviation may contribute to altered airflow characteristics. However, warming function was similar between septal deviation types. Future studies will help to ascertain the functional importance of septal deviation types and the applicability of these computational studies.

AB - Nasal septal deviations (NSD) have been categorized into 7 types. The effect of these different deviations on airflow pattern and warming function has not been fully investigated. The purpose of this study was to utilize a computational fluid dynamics approach to assess the impact of NSD of varying types on nasal airflow and warming function. Patients with each type of NSD were enrolled in the study, and a normal participant as the control. Using a computational fluid dynamics approach, modeling of nasal function was performed. Indices of nasal function including airflow redistribution, total nasal resistance, airflow velocity, and airflow temperature were determined. Among all types of NSD, the maximal velocity and total nasal resistance were markedly higher in type 4 and 7 deviations. The flow partition and velocity distribution were also altered in type 4 and 7 as well as type 2 and 6 deviations. Airflow in all categories of NSD was fully warmed to a similar degree. From a computational aerodynamics perspective, the type of septal deviation may contribute to altered airflow characteristics. However, warming function was similar between septal deviation types. Future studies will help to ascertain the functional importance of septal deviation types and the applicability of these computational studies.

KW - airflow pattern

KW - computational fluid dynamics

KW - nasal septal deviation

KW - warming function

UR - http://www.scopus.com/inward/record.url?scp=85074457108&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85074457108&partnerID=8YFLogxK

U2 - 10.1177/0145561319872745

DO - 10.1177/0145561319872745

M3 - Article

C2 - 31569977

AN - SCOPUS:85074457108

JO - Ear, Nose and Throat Journal

JF - Ear, Nose and Throat Journal

SN - 0145-5613

ER -