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Experimental study of jet surface structures and the influence of nozzle configuration
KTH, School of Engineering Sciences (SCI), Mechanics, Physicochemical Fluid Mechanics. Jiangsu University, China.ORCID iD: 0000-0002-5915-0789
2016 (English)In: Fluid Dynamics Research, ISSN 0169-5983, E-ISSN 1873-7005, Vol. 48, no 4, 045503Article in journal (Refereed) Published
Abstract [en]

Under the three breakup regimes, the jet surface waves of different nozzles are captured and measured. The nozzles have different length to diameter ratios and contraction angles. The measured wavelengths are compared with the reported conclusions which were obtained by using spatial and temporal linear stability analysis. The results show that the jet wavelengths of different breakup regimes are covered by a single curve when the wavelengths are non-dimensionalized with boundary layer thickness. For the nozzle with equal length and diameter, the entire translation section starts at Re = 3 x 10(4) and ends at Re = 4.5 x 10(4). The wavelength non-dimensionalized with boundary layer thickness is independent of nozzle configuration. The ratio of initial wavelength to boundary layer thickness ranges from 2 to 4.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2016. Vol. 48, no 4, 045503
Keyword [en]
high-speed liquid jet, surface wave, boundary layer, geometric parameters, breakup regime
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:kth:diva-192742DOI: 10.1088/0169-5983/48/4/045503ISI: 000381818100003Scopus ID: 2-s2.0-84984680147OAI: oai:DiVA.org:kth-192742DiVA: diva2:974306
Note

QC 20160926

Available from: 2016-09-26 Created: 2016-09-20 Last updated: 2017-11-21Bibliographically approved

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