Publication detail

Investigation of Flow in a Model of Human Airways using Constant Temperature Anemometry and Numerical Simulation

LÍZAL, F. ELCNER, J. JEDELSKÝ, J. JÍCHA, M.

Original Title

Investigation of Flow in a Model of Human Airways using Constant Temperature Anemometry and Numerical Simulation

English Title

Investigation of Flow in a Model of Human Airways using Constant Temperature Anemometry and Numerical Simulation

Type

conference paper

Language

en

Original Abstract

Mechanics of flow in human lungs has major influence on a transport and deposition of inhaled particles. A semi-realistic model of human tracheobronchial airways was used for experimental measurement and numerical simulation of an air velocity field. Axial velocities in 14 points in a trachea were measured using Constant Temperature Anemometry and compared with numerical simulation. The influence of a computational mesh quality was investigated as well. The experimental and simulated results proved significant differences between the methods. Probable causes of the discrepancies are a size of the anemometric probe, accuracy of the numerical method and its sensitivity to mesh quality and boundary conditions.

English abstract

Mechanics of flow in human lungs has major influence on a transport and deposition of inhaled particles. A semi-realistic model of human tracheobronchial airways was used for experimental measurement and numerical simulation of an air velocity field. Axial velocities in 14 points in a trachea were measured using Constant Temperature Anemometry and compared with numerical simulation. The influence of a computational mesh quality was investigated as well. The experimental and simulated results proved significant differences between the methods. Probable causes of the discrepancies are a size of the anemometric probe, accuracy of the numerical method and its sensitivity to mesh quality and boundary conditions.

Keywords

constant temperature anemometry, numerical simulation, CFD, human airways, flow measurement

RIV year

2013

Released

14.05.2013

Publisher

WSEAS Press

Location

Vouliagmeni, Athens, Greece

ISBN

978-1-61804-183-8

Book

Recent Advances in Fluid Mechanics and Heat & Mass Transfer

Pages from

35

Pages to

40

Pages count

6

BibTex


@inproceedings{BUT104062,
  author="František {Lízal} and Jakub {Elcner} and Jan {Jedelský} and Miroslav {Jícha}",
  title="Investigation of Flow in a Model of Human Airways using Constant Temperature Anemometry and Numerical Simulation",
  annote="Mechanics of flow in human lungs has major influence on a transport and deposition of inhaled particles. A semi-realistic model of human tracheobronchial airways was used for experimental measurement and numerical simulation of an air velocity field. Axial velocities in 14 points in a trachea were measured using Constant Temperature Anemometry and compared with numerical simulation. The influence of a computational mesh quality was investigated as well. The experimental and simulated results proved significant differences between the methods.  Probable causes of the discrepancies are a size of the anemometric probe, accuracy of the numerical method and its sensitivity to mesh quality and boundary conditions.",
  address="WSEAS Press",
  booktitle="Recent Advances in Fluid Mechanics and Heat & Mass Transfer",
  chapter="104062",
  howpublished="print",
  institution="WSEAS Press",
  year="2013",
  month="may",
  pages="35--40",
  publisher="WSEAS Press",
  type="conference paper"
}