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Turbulence structure on the surface of high speed liquid jet
KTH, School of Engineering Sciences (SCI), Mechanics, Physicochemical Fluid Mechanics.ORCID iD: 0000-0002-5915-0789
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2015 (English)In: ASME/JSME/KSME 2015 Joint Fluids Engineering Conference, AJKFluids 2015, American Society of Mechanical Engineers , 2015Conference paper, Published paper (Refereed)
Abstract [en]

The structures on the surface of high-speed capillary liquid jet were captured with the help of high-speed camera and microscope. Apower spectral density method is used to deal with the jet images. Based on captured jet image, the variation of surface structures near the exit of the nozzle is divided into three sections: laminar section, instability section and turbulence section. There is no clearly surface structures in the laminar section. The wave-like structures come out in the instability section with a sudden and are regularly increase with a small slope along the streamwise. The degree of order is rather weak in the turbulence section. The increase of the Reynolds numbers which based on the momentum thickness at the exit of the nozzle will accelerates the jet surface transition from the laminar section to turbulence section.

Place, publisher, year, edition, pages
American Society of Mechanical Engineers , 2015.
Keywords [en]
High-speed camera, Liquid jet, Power spectral density method, Surface wave, Cameras, High speed cameras, Jets, Liquids, Nozzles, Reynolds number, Spectral density, Surface structure, Surface waves, Turbulence, Degree of order, High Speed, Jet surfaces, Liquid jets, Momentum thickness, Turbulence structures, Fighter aircraft
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-227908DOI: 10.1115/AJKFluids2015-09512Scopus ID: 2-s2.0-85044252518ISBN: 978-0-7918-5722-9 (print)OAI: oai:DiVA.org:kth-227908DiVA, id: diva2:1206119
Conference
ASME/JSME/KSME 2015 Joint Fluids Engineering Conference, AJKFluids 2015, 26 July 2015 through 31 July 2015
Note

QC 20180516

Conference code: 117507; Export Date: 14 May 2018; Conference Paper

Available from: 2018-05-16 Created: 2018-05-16 Last updated: 2018-06-07Bibliographically approved

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Wang, Yuli

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf