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ADDITIONAL TECHNICAL PAPERS

Turbulence and Phase Distribution in Bubbly Pipe Flow Under Microgravity Condition

[+] Author and Article Information
J. Chahed

Ecole Nationale d’Ingénieurs de Tunis, BP No. 37, 1002 Le Belvédère, Tunis, Tunisia

C. Colin, L. Masbernat

Institut de Mécanique des Fluides de Toulouse, Avenue Camille Soula, 31400 Toulouse, France

J. Fluids Eng 124(4), 951-956 (Dec 04, 2002) (6 pages) doi:10.1115/1.1514212 History: Received November 29, 2000; Revised May 16, 2002; Online December 04, 2002
Copyright © 2002 by ASME
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References

Figures

Grahic Jump Location
Logarithmic near wall profiles of the mean velocity simulated in single-phase pipe flow in normal gravity (–) and in bubbly pipe flow (- - -) under microgravity condition. Comparison with the experimental data (▴ bubbly flow in micro-gravity) of Kamp et al. 15.
Grahic Jump Location
Longitudinal turbulent intensity profiles in single-phase pipe flow in normal gravity (–) and in bubbly pipe flow under microgravity condition (- - -). Experimental data (♦ single phase flow, ▴ bubbly flow in microgravity) of Kamp et al. 15.
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Effect of the drift on the void fraction profiles in bubbly pipe flow under microgravity condition; simulations without the turbulent contribution of the added mass force (lift force coefficient CL=0): simulations with [[dotted_line]] CDT=0.05; - - -CDT=0.5; - - -CDT=1; –CDT=2, ♦ experimental data of Kamp et al. 15
Grahic Jump Location
Effect of the lift force on the void fraction profiles in bubbly pipe flow under microgravity condition; simulations without the turbulent contribution of the added mass force (drift coefficient CDT=1): simulations with [[dotted_line]] CL=0; - - - CL=0.05; [[dashed_line]]CL=0.1; –CL=0.2, ♦ experimental data of Kamp et al. 15
Grahic Jump Location
Effect of the added mass turbulent term in the transversal momentum balance on the void fraction profiles in bubbly pipe flow under microgravity condition (drift coefficient CDT=1, lift coefficient CL=0): simulations with [[dotted_line]] C11=C22=1; - - - CT=0.15; [[dashed_line]]CT=0.3; –CT=0.45, ♦ experimental data of Kamp et al. 15
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Ratio between the normal components of the Reynolds stress tensor in the gas and in the liquid phases in bubbly pipe flow under microgravity condition (drift coefficient CDT=1, lift coefficient CL=0): simulations with [[dotted_line]] C11=C22=1; - - -CT=0.15; [[dashed_line]]CT=0.3; –CT=0.45
Grahic Jump Location
Effect of the added mass turbulent term in the longitudinal momentum balance on the void fraction profiles in bubbly pipe flow under microgravity condition (drift coefficient CDT=1, lift coefficient CL=0,CT=0.35): simulations with [[dotted_line]] C12=0; - - - C12=0.5 [[dashed_line]]C12=1; –C12=2, ♦ experimental data of Kamp et al. 15
Grahic Jump Location
Mean velocity profiles in single-phase pipe flow in normal gravity and in bubbly pipe flow under microgravity condition. Comparison of the numerical results: (– single-phase flow, - - - bubbly flow) with the experimental data (♦ single phase flow, ▴ bubbly flow in microgravity) of Kamp et al. 15.

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