Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21124
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dc.contributorDepartment of Mechanical Engineering-
dc.creatorLu, MZ-
dc.creatorLiu, Y-
dc.creatorYe, JY-
dc.creatorLuo, HY-
dc.date.accessioned2015-06-23T09:17:20Z-
dc.date.available2015-06-23T09:17:20Z-
dc.identifier.issn1877-0509-
dc.identifier.urihttp://hdl.handle.net/10397/21124-
dc.description14th Annual International Conference on Computational Science, ICCS 2014, Cairns, QLD, 10-12 June 2014en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rights© 2014 The Authors. Published by Elsevier B.V.en_US
dc.rightsThis is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/3.0/)en_US
dc.rightsThe following publication Lu, M. Z., Liu, Y., Ye, J. Y., & Luo, H. Y. (2014). Large Eddy simulation of flow in realistic human upper airways with obstructive sleep. Procedia Computer Science, 29, 557-564 is available at https://doi.org/10.1016/j.procs.2014.05.050en_US
dc.subjectCFDen_US
dc.subjectLarge Eddy simulationen_US
dc.subjectOSAen_US
dc.subjectSurgeryen_US
dc.titleLarge Eddy Simulation of flow in realistic human upper airways with obstructive sleepen_US
dc.typeConference Paperen_US
dc.identifier.spage557-
dc.identifier.epage564-
dc.identifier.volume29-
dc.identifier.doi10.1016/j.procs.2014.05.050-
dcterms.abstractObstructive sleep apnea (OSA) is a common type of sleep disorder characterized by abnormal repetitive cessation in breathing during sleep caused by partial or complete narrowing of pharynx in the upper airway. The upper airway surgery is commonly performed for this disorder, however the success rate is limited because the lack of the thorough understanding of the primary mechanism associated with OSA. The computational fluid dynamics (CFD) simulation with Large Eddy Simulation (LES) approach is conducted to investigate two patient-specific upper airway flow with severe OSA. Both pre and post-surgical upper airway models are simulated to investigate the capability of CFD simulation for the prediction of the OSA surgery. Only the inhaled breathing is conducted with six periods (about 15 second) unsteady flow. Compared with the results before and after treatment, it is illustrated that there exists a significant pressure and shear stress dropping region near the soft palate before treatment; and after the treatment the flow resistance in the upper airway is decreased and the wall shear stress value is significantly reduced which means both surgery are successful. The analyze from the CFD is consistent with the parameters of clinical and LES can be a good tool for OSA study.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationProcedia computer science, 2014, v. 29, p. 557-564-
dcterms.isPartOfProcedia Computer Science-
dcterms.issued2014-
dc.identifier.scopus2-s2.0-84902808843-
dc.identifier.rosgroupidr72522-
dc.description.ros2013-2014 > Academic research: refereed > Publication in refereed journal-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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