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dc.contributor.authorVan Hirtum, A.
dc.contributor.authorCisonni, Julien
dc.contributor.authorPelorson, X.
dc.date.accessioned2017-01-30T12:20:37Z
dc.date.available2017-01-30T12:20:37Z
dc.date.created2016-09-12T08:36:40Z
dc.date.issued2009
dc.identifier.citationVan Hirtum, A. and Cisonni, J. and Pelorson, X. 2009. On quasi-steady laminar flow separation in the upper airways. Communications in numerical methods in engineering. 25 (5): pp. 447-461.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/20708
dc.identifier.doi10.1002/cnm.1195
dc.description.abstract

Accurate prediction of the position of flow separation along a constriction is important to model fluid-structure interaction phenomena in the upper airways such as phonation and obstructive sleep apnea. Flow assumptions underlying common flow descriptions along the upper airways are formulated. Flow separation positions obtained from theories with different degrees of complexity are qualitatively and quantitatively discussed. In particular, geometrical and flow features determining the influence of viscosity are varied. Increasing the constriction degree and the constriction length is shown to affect the position of flow separation. Boundary layer solutions and simulations with the two-dimensional Navier Stokes equations result in an accurate quantitative prediction of flow separation. Furthermore, Jeffery-Hamel flow solutions qualitatively predict the effect of both constriction height and length on the position of flow separation. The ad hoc assumption applied in quasi-one-dimensional flow descriptions does not accurately predict flow separation. Copyright © 2008 John Wiley & Sons, Ltd.

dc.publisherJohn Wiley & Sons Ltd.
dc.titleOn quasi-steady laminar flow separation in the upper airways
dc.typeJournal Article
dcterms.source.volume25
dcterms.source.number5
dcterms.source.startPage447
dcterms.source.endPage461
dcterms.source.issn1069-8299
dcterms.source.titleCommunications in numerical methods in engineering
curtin.departmentDepartment of Mechanical Engineering
curtin.accessStatusFulltext not available


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