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CFD Simulations of Turbulent Flow in the Human Upper Airways

Abstract

In this paper, investigations are conducted using Reynolds-averaged Navier-Stokes (RANS) turbulence models to investigate the importance of turbulence modelling for nasal inspiration at a constant flow rate of 250 ml/s. Four different, standard turbulence models are tested in a model geometry based on pre-operative CT images of a selected obstructive sleep-apnea syndrome (OSAS) patient. The results show only minor differences between them. Furthermore, the turbulence models do not give significantly different results than a laminar flow model. Thus, the main conclusion is that effects of turbulence are insignificant in CFD modelling of the airflow in the pre-operative model of the upper airways of the chosen patient.

Category

Academic chapter/article/Conference paper

Client

  • Research Council of Norway (RCN) / 231741

Language

English

Author(s)

Affiliation

  • Norwegian University of Science and Technology
  • SINTEF Industry / Metal Production and Processing
  • SINTEF Industry / Process Technology

Year

2017

Publisher

SINTEF akademisk forlag

Book

Progress in Applied CFD – CFD2017 Selected papers from 12th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries

Issue

2

ISBN

978-82-536-1544-8

Page(s)

163 - 169

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