Imperial College London
Alternate

Emeritus ProfessorRobertSchroter

Faculty of Engineering, Department of Bioengineering

Emeritus Professor
 
 
 
//

Contact

 

+44 (0)20 7594 5175r.schroter

 
 
//

Location

 

4.15Royal School of MinesSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Bates:2016:10.1016/j.resp.2016.09.002,
author = {Bates, AJ and Cetto, R and Doorly, DJ and Schroter, RC and Tolley, NS and Comerford, A},
doi = {10.1016/j.resp.2016.09.002},
journal = {Respiratory Physiology & Neurobiology},
pages = {69--78},
title = {The effects of curvature and constriction on airflow and energy loss in pathological tracheas},
url = {http://dx.doi.org/10.1016/j.resp.2016.09.002},
volume = {234},
year = {2016}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper considers factors that play a significant role in determining inspiratory pressure and energy losses in the human trachea. Previous characterisations of pathological geometry changes have focussed on relating airway constriction and subsequent pressure loss, however many pathologies that affect the trachea cause deviation, increased curvature, constriction or a combination of these. This study investigates the effects of these measures on tracheal flow mechanics, using compressive goitre (a thyroid gland enlargement) as an example. Computational fluid dynamics simulations were performed in airways affected by goitres (with differing geometric consequences) and a normal geometry for comparison. Realistic airways, derived from medical images, were used because idealised geometries often oversimplify the complex anatomy of the larynx and its effects on the flow. Two mechanisms, distinct from stenosis, were found to strongly affect airflow energy dissipation in the pathological tracheas. The jet emanating from the glottis displayed different impingement and breakdown patterns in pathological geometries and increased loss was associated with curvature.
AU  - Bates,AJ
AU  - Cetto,R
AU  - Doorly,DJ
AU  - Schroter,RC
AU  - Tolley,NS
AU  - Comerford,A
DO  - 10.1016/j.resp.2016.09.002
EP  - 78
PY  - 2016///
SN  - 1569-9048
SP  - 69
TI  - The effects of curvature and constriction on airflow and energy loss in pathological tracheas
T2  - Respiratory Physiology & Neurobiology
UR  - http://dx.doi.org/10.1016/j.resp.2016.09.002
UR  - http://hdl.handle.net/10044/1/40205
VL  - 234
ER  -
Download