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volume 12 issue 14 pages 2735

Experimental and Numerical Study of the Flow and Heat Transfer in a Bubbly Turbulent Flow in a Pipe with Sudden Expansion

Publication typeJournal Article
Publication date2019-07-17
scimago Q1
wos Q3
SJR0.713
CiteScore7.3
Impact factor3.2
ISSN19961073
Electrical and Electronic Engineering
Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Control and Optimization
Engineering (miscellaneous)
Energy (miscellaneous)
Abstract

The flow patterns and heat transfer of a downstream bubbly flow in a sudden pipe expansion are experimentally and numerically studied. Measurements of the bubble size were performed using shadow photography. Fluid phase velocities were measured using a PIV system. The numerical model was employed the Eulerian approach. The set of RANS equations was used for modelling two-phase bubbly flows. The turbulence of the carrier liquid phase was predicted using the Reynolds stress model. The peak of axial and radial fluctuations of the carrier fluid (liquid) velocity in the bubbly flow is observed in the shear layer. The addition of air bubbles resulted in a significant increase in the heat transfer rate (up to 300%). The main enhancement in heat transfer is observed after the point of flow reattachment.

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GOST Copy
Lobanov P., Maksim P., Terekhov V. Experimental and Numerical Study of the Flow and Heat Transfer in a Bubbly Turbulent Flow in a Pipe with Sudden Expansion // Energies. 2019. Vol. 12. No. 14. p. 2735.
GOST all authors (up to 50) Copy
Lobanov P., Maksim P., Terekhov V. Experimental and Numerical Study of the Flow and Heat Transfer in a Bubbly Turbulent Flow in a Pipe with Sudden Expansion // Energies. 2019. Vol. 12. No. 14. p. 2735.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.3390/en12142735
UR - https://doi.org/10.3390/en12142735
TI - Experimental and Numerical Study of the Flow and Heat Transfer in a Bubbly Turbulent Flow in a Pipe with Sudden Expansion
T2 - Energies
AU - Lobanov, Pavel
AU - Maksim, Pakhomov
AU - Terekhov, Viktor
PY - 2019
DA - 2019/07/17
PB - MDPI
SP - 2735
IS - 14
VL - 12
SN - 1996-1073
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{2019_Lobanov,
author = {Pavel Lobanov and Pakhomov Maksim and Viktor Terekhov},
title = {Experimental and Numerical Study of the Flow and Heat Transfer in a Bubbly Turbulent Flow in a Pipe with Sudden Expansion},
journal = {Energies},
year = {2019},
volume = {12},
publisher = {MDPI},
month = {jul},
url = {https://doi.org/10.3390/en12142735},
number = {14},
pages = {2735},
doi = {10.3390/en12142735}
}
MLA
Cite this
MLA Copy
Lobanov, Pavel, et al. “Experimental and Numerical Study of the Flow and Heat Transfer in a Bubbly Turbulent Flow in a Pipe with Sudden Expansion.” Energies, vol. 12, no. 14, Jul. 2019, p. 2735. https://doi.org/10.3390/en12142735.
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