Full metadata record
DC poleHodnotaJazyk
dc.contributor.authorDuda, Daniel
dc.contributor.authorAbrhám, Vladimír
dc.contributor.authorUruba, Václav
dc.contributor.authorYanovych, Vitalii
dc.date.accessioned2022-04-04T10:00:11Z-
dc.date.available2022-04-04T10:00:11Z-
dc.date.issued2021
dc.identifier.citationDUDA, D. ABRHÁM, V. URUBA, V. YANOVYCH, V. Turbulent jet stability increased by ribs inside the nozzle – Stereo PIV measurement one diameter past the nozzle. In 20th Conference on Power System Engineering. Pilsen: EDP Sciences, 2021. s. 1-7. ISBN: neuvedeno , ISSN: 2261-236Xcs
dc.identifier.isbnneuvedeno
dc.identifier.issn2261-236X
dc.identifier.urihttp://hdl.handle.net/11025/47310
dc.format7 s.cs
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherEDP Sciencesen
dc.relation.ispartofseries20th Conference on Power System Engineeringen
dc.rights© authorsen
dc.titleTurbulent jet stability increased by ribs inside the nozzle – Stereo PIV measurement one diameter past the nozzleen
dc.typekonferenční příspěvekcs
dc.typeConferenceObjecten
dc.rights.accessopenAccessen
dc.type.versionpublishedVersionen
dc.description.abstract-translatedWe observe that decreasing the inner nozzle surface by adding longitudinal ribs increases the jet stability in terms of the amount of turbulent kinetic energy in the near shear layer. We try to explain our observation as a stabilization effect of secondary flow vortices emerging in the corners of the ribs. These stream-wise vortices damage the development of larger-scale structures in the near shear layer. This explanation is supported by autocorrelation function of the stream-wise velocity component, which displays slightly smaller integral length-scale in the case with ribs than in the case of smooth nozzle. The experiment is performed at Reynolds number 2.2 × 105 (based on the nozzle diameter 50 mm); the Stereo-PIV (Particle Image Velocimetry) measurement takes place at the plane perpendicular to the jet axis one diameter past the nozzle exit. Optical 3D scanner controls the real nozzle geometry. This article presents preliminary measurement at single position and single velocity only; further exploration of this problem is needed.en
dc.subject.translatedturbulent jeten
dc.subject.translatednozzleen
dc.subject.translatedPIVen
dc.identifier.doi10.1051/matecconf/202134500006
dc.type.statusPeer-revieweden
dc.identifier.document-number748890700006
dc.identifier.obd43933848
dc.project.IDEF16_026/0008389/LoStr: Výzkumná spolupráce pro dosažení vyšší účinnosti a spolehlivosti lopatkových strojůcs
Vyskytuje se v kolekcích:Konferenční příspěvky / Conference papers (KKE)
OBD

Soubory připojené k záznamu:
Soubor VelikostFormát 
ES2021-duda.pdf1,92 MBAdobe PDFZobrazit/otevřít
Zobrazit minimální záznam Zobrazit statistiky


Použijte tento identifikátor k citaci nebo jako odkaz na tento záznam: http://hdl.handle.net/11025/47310

Všechny záznamy v DSpace jsou chráněny autorskými právy, všechna práva vyhrazena.

hledání
navigace
  1. DSpace at University of West Bohemia
  2. Publikační činnost / Publications
  3. OBD