Abstract
The turbulent structure of a submerged axisymmetric impinging jet containing small gas bubbles is studied experimentally under conditions of periodic external excitation. On the basis of measuring the surface-friction pulsatory component in the jet impinging on an obstacle, the effect of the suppression of large-scale eddies at large gas volume fractions is registered. The conditions of resonant growth of coherent structures and the suppression of wide-band turbulence are determined for both the single-phase and the two-phase impinging jet. An analysis of the development of different pulsatory friction components in the impinging-jet gradient region is presented.
| Original language | English |
|---|---|
| Pages (from-to) | 22-33 |
| Number of pages | 12 |
| Journal | Fluid Dynamics |
| Volume | 37 |
| Issue number | 5 |
| Publication status | Published - 1 Jan 2002 |
| Externally published | Yes |
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Keywords
- Coherent structures
- Gas-liquid
- Submerged impinging jet
- Turbulence
ASJC Scopus subject areas
- Mechanical Engineering
- Physics and Astronomy(all)
- Fluid Flow and Transfer Processes
Cite this
Turbulent structure of a gas-liquid impinging jet. / Alekseenko, S. V.; Markovich, D. M.; Semenov, V. I.
In: Fluid Dynamics, Vol. 37, No. 5, 01.01.2002, p. 22-33.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Turbulent structure of a gas-liquid impinging jet
AU - Alekseenko, S. V.
AU - Markovich, D. M.
AU - Semenov, V. I.
PY - 2002/1/1
Y1 - 2002/1/1
N2 - The turbulent structure of a submerged axisymmetric impinging jet containing small gas bubbles is studied experimentally under conditions of periodic external excitation. On the basis of measuring the surface-friction pulsatory component in the jet impinging on an obstacle, the effect of the suppression of large-scale eddies at large gas volume fractions is registered. The conditions of resonant growth of coherent structures and the suppression of wide-band turbulence are determined for both the single-phase and the two-phase impinging jet. An analysis of the development of different pulsatory friction components in the impinging-jet gradient region is presented.
AB - The turbulent structure of a submerged axisymmetric impinging jet containing small gas bubbles is studied experimentally under conditions of periodic external excitation. On the basis of measuring the surface-friction pulsatory component in the jet impinging on an obstacle, the effect of the suppression of large-scale eddies at large gas volume fractions is registered. The conditions of resonant growth of coherent structures and the suppression of wide-band turbulence are determined for both the single-phase and the two-phase impinging jet. An analysis of the development of different pulsatory friction components in the impinging-jet gradient region is presented.
KW - Coherent structures
KW - Gas-liquid
KW - Submerged impinging jet
KW - Turbulence
UR - http://www.scopus.com/inward/record.url?scp=0036770408&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036770408&partnerID=8YFLogxK
M3 - Article
VL - 37
SP - 22
EP - 33
JO - Fluid Dynamics
JF - Fluid Dynamics
SN - 0015-4628
IS - 5
ER -