A CFD Qualitative Study of an Infant's Plethysmograph

Authors

  • Ilham Amezzane PolySTIM Neurotechnologies Laboratory École Polytechnique de Montréal
  • Mohamad Sawan PolySTIM Neurotechnologies Laboratory École Polytechnique de Montréal
  • François Bellemare Centre Hospitalier de l'Université de Montréal Hôtel-Dieu
  • Stéphane Hallé École de Technologie Supérieure

Abstract

In this paper, Computational Fluid Dynamics (CFD) is used to simulate the effects of respiration in displacement ventilated whole body plethysmograph for infants. It is found that CFD allows to simulate the effects seen in experimental results in a satisfactory manner. Grid density, especially in the exhalation zone, is paramount. The choice of flow rate is more important for the flow pattern, the thermal comfort and the air quality inside the plethysmograph. Calculations are carried out in the case of an infant model, in sleep position inside the apparatus, during an exhalation phase with a constant flow rate.  Airflow is predicted using a commercial computational fluids dynamic software called Fluent (FLUENT Inc.). Turbulent modeling is accomplished  with the low-Reynolds number k-e model.

Author Biographies

Ilham Amezzane, PolySTIM Neurotechnologies Laboratory École Polytechnique de Montréal

Département de génie électrique

Mohamad Sawan, PolySTIM Neurotechnologies Laboratory École Polytechnique de Montréal

Département de génie électrique

Stéphane Hallé, École de Technologie Supérieure

Département de génie mécanique

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Published

2005-12-31

How to Cite

[1]
I. Amezzane, M. Sawan, F. Bellemare, and S. Hallé, “A CFD Qualitative Study of an Infant’s Plethysmograph”, CMBES Proc., vol. 28, no. 1, Dec. 2005.

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Section

Academic