An experimental analysis of airflow in various collapsible tubes at the onset of self-excited oscillations

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dc.contributor.authorOruç V.
dc.contributor.authorÖzdinç Çarpinlioğlu M.
dc.date.accessioned2024-04-24T18:45:55Z
dc.date.available2024-04-24T18:45:55Z
dc.date.issued2011
dc.departmentDicle Üniversitesien_US
dc.description.abstractThe experimental results of airflow through some collapsible tubes are analysed in this paper for the case of onset of self-excited oscillations without so much focusing on the mechanisms triggering the oscillations. The basic experimental measurements are the pressure values at both of upstream and downstream ends of the collapsible tube as well as velocity at downstream of the tube by means of a hot wire anemometer. The obtained results correspond to the instant at which oscillations appear. It has been established that the flow is substantially chaotic during the vigorous oscillations. The experimental data at the onset of self-excited oscillations was evaluated subsequently to obtain some non-dimensional parameters based on oscillating flow velocity, frequency, pressure drop through the collapsible tube and downstream transmural pressure. The variations of these parameters with some terms including all geometrical and mechanical characteristics of the collapsible tubes are presented. The diversity of experimental variables such as collapsible tube type, tube-wall thickness, tube length and flow rate which are varied in the investigation should be useful on account of having a general information about collapsible tube flow researches. It has been recognized that all of these variables considerably affected the behaviour (frequency, velocity, upstream and downstream pressure) of oscillations and conditions of their emergence. It can thereby be suggested that the specifications of the tube should be carefully considered in the collapsible tube flow investigations.en_US
dc.identifier.endpage163en_US
dc.identifier.issn0562-1887
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-84859026589
dc.identifier.scopusqualityN/A
dc.identifier.startpage153en_US
dc.identifier.urihttps://hdl.handle.net/11468/24962
dc.identifier.volume53en_US
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.relation.ispartofStrojarstvo
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCollapsible Tube Flowen_US
dc.subjectFluid-Structure İnteractionen_US
dc.subjectSelf-Excited Oscillations Onseten_US
dc.subjectWall İnertiaen_US
dc.titleAn experimental analysis of airflow in various collapsible tubes at the onset of self-excited oscillationsen_US
dc.titleAn experimental analysis of airflow in various collapsible tubes at the onset of self-excited oscillations
dc.typeArticleen_US

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