| Measurement of wall deformation and flow limitation in a mechanical trachea. | |
| | |
MedLine Citation:
|
PMID: 7609478 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
A mechanical model of the human trachea is investigated experimentally. A modified version of an earlier model, it consists of a square sectioned rigid tube in which part of one wall is removed, and replaced by a prestretched flat latex membrane. Air is drawn from atmosphere through an inlet into the rigid upstream tube; it then flows through the flexible section and finally through a rigid section into a plenum chamber where suction is applied. As the membrane collapses in response to flow, the transmural pressure and deflection are measured at the mid-point. These values are used in conjunction with a finite deformation membrane wall theory to determine the elastic constant in a nonlinear material constitutive equation. This equation is used to predict the tube law. Results show that the flow limits at the long wave speed predicted by this law. Thus it behaves as a conventional collapsible tube while having the advantage of a rational wall model. |
| | |
Authors:
|
C Walsh; P A Sullivan; J S Hansen; L W Chen |
Related Documents
:
|
17761188 - Electroosmotic transport through rectangular channels with small zeta potentials. 8870768 - Scaling of relative velocity between vehicles. 17155458 - Hawking-like radiation does not require a trapped region. 12786268 - Flow in a rotating curved circular pipe. 18648108 - Achievement goals, competition appraisals, and the psychological and emotional welfare ... 17045458 - A single network adaptive critic (snac) architecture for optimal control synthesis for ... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Journal of biomechanical engineering Volume: 117 ISSN: 0148-0731 ISO Abbreviation: J Biomech Eng Publication Date: 1995 Feb |
Date Detail:
|
Created Date: 1995-08-15 Completed Date: 1995-08-15 Revised Date: 2007-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 7909584 Medline TA: J Biomech Eng Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 146-52 Citation Subset: IM |
Affiliation:
|
Institute of Biomedical Engineering, University of Toronto. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Airway Resistance
/
physiology* Biomechanics Elasticity Evaluation Studies as Topic Humans Models, Biological Pressure Pulmonary Ventilation / physiology* Trachea / anatomy & histology, physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Bending of blood vessel wall: stress-strain laws of the intima-media and adventitial layers.
Next Document: Optimal control of non-ballistic muscular movements: a constraint-based performance criterion for ri...