Particle image velocimetry measurements for the study of nasal airflow.
CONCLUSIONS: Particle image velocimetry (PIV) permits investigation of the distribution and velocity of the airflow in the nasal cavity. During breathing, the main laminar flow stream passes through the middle meatus and turbulent flow can be detected under physiologic conditions. OBJECTIVES: Physic...
| Publicado en: | Acta Oto-Laryngologica Vol. 126; no. 3; pp. 282 - 288 |
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| Autores principales: | , , , , , |
| Formato: | pictorial research Journal Article |
| Publicado: |
Taylor & Francis Ltd
Mar2006
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106322063&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106322063 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00016489 B6D jtl: Acta Oto-Laryngologica issn: 00016489 maglogo: Y pubinfo: dt: Mar2006 vid: 126 iid: 3 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 106322063 2009161162 10.1080/00016480500361320 NLM16618655 106322063 ppf: 282 ppct: 6 formats: fmt: @attributes: type: P tig: atl: Particle image velocimetry measurements for the study of nasal airflow. aug: au: Kim JK Yoon J Kim CH Nam TW Shim DB Shin HA affil: Department of Otorhinolaryngology-Head and Neck Surgery, Konkuk University College of Medicine, 1 Hwang-dong, Gwangjin-gu, Seoul 143-701, Korea; jkkimmd@kuh.ac.kr sug: subj: Nose Respiration Algorithms Biomechanics Comparative Studies Image Processing, Computer Assisted Models, Anatomic Human ab: CONCLUSIONS: Particle image velocimetry (PIV) permits investigation of the distribution and velocity of the airflow in the nasal cavity. During breathing, the main laminar flow stream passes through the middle meatus and turbulent flow can be detected under physiologic conditions. OBJECTIVES: Physical models or casts of the nasal cavity have been utilized in several studies in an effort to understand its aerodynamics. PIV is a new technique for measuring the aerodynamic properties of tubular structures. In this article we evaluate nasal airflow characteristics during physiologic breathing under normal conditions and the usefulness of PIV. MATERIAL AND METHODS: A nasal model cast obtained by a combination of rapid prototyping and solidification of clear silicone was connected to a pump which simulated the physiological pressure in the upper airway system. A glycerol-water mixture was used as the flow material. The airstream was marked with spherical polyvinyl particles, observed through solidified clear silicone and analyzed using PIV. RESULTS: The main flow within the cavity, which was mostly laminar, passed through the middle meatus. Turbulence was clearly visible in the anteroinferior part of the middle turbinate. The flow rate was highest at the middle meatus during inspiration and expiration. pubtype: Academic Journal doctype: pictorial research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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