CFD & AMP Center
Department of Mechanical & Aerospace Engineering
West Virginia University
E: ismail.celik@mail.wvu.edu

Prediction of Gas Turbine Combustion Emissions using RANS/EDC and RANS/PDF methods

Title
Particle Deposition Studies in the Upper Respiratory Tract : Larynx
 
Sponsor
NIOSH
 
Investigators
Dr. Ismail B. Celik
Dr. Ibrahim Yavuz
Cem Ersahin
 
Collaborators
Dr. William G. Lindsley
Dr. David G. Frazer
Dr. Omur C. Elci, MD
 
Poster
Particle Deposition Studies in the Upper Respiratory Tract : Larynx
 

Method

This Pseudo-two-dimensional lumped transient model is based on integral continuity and momentum equations. A two-dimensional velocity field is reconstructed after calculating the average velocity along the axial direction as a function of time. This pseudo-two-dimensional approach makes the solver very efficient and fast, with the capability of handling arbitrary shapes, moving boundaries and transient flow.

Objective

Larynx is a special section of upper respiratory tract with a role of creating phonation and protective barrier before the lower respiratory tract. It has a unique dynamic feature of three dimensional flexibility and continuous active movements that effect air flow dynamics in the lower respiratory tract. Occupational exposures play a role in the etiology of laryngeal disorders, especially cancer. It is believed that the tissue interaction with particles suspended in air increase the risk of cancer. Therefore, the deposition behavior of solid particulate matter inside the larynx of a human gains a significant importance.

           
      

Objective

The main goal of this study is to simulate the aerosol generation and deposition in the larynx during breathing and coughing conditions for applications in the medical field.

      

Some Results