Turbulent structure of bubble free and confined jets

Abstract

The present work is devoted to the experimental study of bubble-saturated free and impinging turbulent jets (Re = 12,000) by using a planar fluorescence-based technique for bubble imaging, combined with PIV and PTV methods for the velocity measurements. The bubble jet flows were investigated under the various volume gas fractions. On the basis of 10,000 measured spatial distributions of the instantaneous velocity fields of the both phases and local gas fraction, the statistics on the turbulent fluctuations in the jets flows was calculated, including mixed one-point correlations. The paper reports the effects of volume gas fraction on turbulent fluctuations in liquid phase (suppression or enhancement) for free and impinging jet flows.

Original language	English
Pages	865-870
Number of pages	6
Publication status	Published - 1 Jan 2009
Externally published	Yes
Event	6th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2009 - Seoul, Korea, Republic of Duration: 22 Jun 2009 → 24 Jun 2009

Conference

Conference	6th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2009
Country	Korea, Republic of
City	Seoul
Period	22.6.09 → 24.6.09

ASJC Scopus subject areas

Fluid Flow and Transfer Processes

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Turbulent structure of bubble free and confined jets. / Akhmetbekov, Yerbol K.; Alekseenko, Sergey V.; Dulin, Vladimir M.; Markovich, Dmitriy M.; Pervunin, Konstantin S.

2009. 865-870 Paper presented at 6th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2009, Seoul, Korea, Republic of.

Research output: Contribution to conference › Paper › peer-review

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author = "Akhmetbekov, {Yerbol K.} and Alekseenko, {Sergey V.} and Dulin, {Vladimir M.} and Markovich, {Dmitriy M.} and Pervunin, {Konstantin S.}",

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AU - Akhmetbekov, Yerbol K.

AU - Alekseenko, Sergey V.

AU - Dulin, Vladimir M.

AU - Markovich, Dmitriy M.

AU - Pervunin, Konstantin S.

PY - 2009/1/1

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AB - The present work is devoted to the experimental study of bubble-saturated free and impinging turbulent jets (Re = 12,000) by using a planar fluorescence-based technique for bubble imaging, combined with PIV and PTV methods for the velocity measurements. The bubble jet flows were investigated under the various volume gas fractions. On the basis of 10,000 measured spatial distributions of the instantaneous velocity fields of the both phases and local gas fraction, the statistics on the turbulent fluctuations in the jets flows was calculated, including mixed one-point correlations. The paper reports the effects of volume gas fraction on turbulent fluctuations in liquid phase (suppression or enhancement) for free and impinging jet flows.

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