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Stabilisation of a plane liquid sheet by gas flow: experiments and theory
KTH, School of Engineering Sciences (SCI), Mechanics.
KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0003-3737-0091
KTH, School of Engineering Sciences (SCI), Mechanics.
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(English)Manuscript (Other academic)
Abstract [en]

The stability of a plane liquid jet is studied experimentally and theoretically. The main emphasis is on the effect of the surrounding air. Co-blowing with a gas velocity of the same order of magnitude as the liquid velocity is studied. Experimental results are obtained and the growth rates of the disturbances are found to be within 20\% of the values obtained from local spatial stability analysis. The effect of different parameters of the gas flow on the stability of the jet is scrutinized and it is concluded that the predicted disturbance growth is mostly sensitive to the shear from the air on the liquid surface and the velocity difference between the water and the air.

The overall disturbance growth and wavelength scales with the difference between the gas and liquid velocity.

 

 

National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-10186OAI: oai:DiVA.org:kth-10186DiVA: diva2:210100
Note
QC 20101102Available from: 2009-04-01 Created: 2009-03-30 Last updated: 2010-11-02Bibliographically approved
In thesis
1. Linear stability of plane wakes and liquid jets: global and local approach
Open this publication in new window or tab >>Linear stability of plane wakes and liquid jets: global and local approach
2009 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH, 2009. viii, 54 p.
Series
Trita-MEK, ISSN 0348-467X ; 2009:04
National Category
Fluid Mechanics and Acoustics
Identifiers
urn:nbn:se:kth:diva-10188 (URN)978-91-7415-259-3 (ISBN)
Presentation
2009-04-16, Seminarierum S40, Teknikringen 8, KTH, 10:15 (English)
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Supervisors
Available from: 2009-04-01 Created: 2009-03-30 Last updated: 2010-11-02Bibliographically approved

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Söderberg, Daniel

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Citation style
  • apa
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  • Other locale
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Output format
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