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Bubble-driven Convective Flow in the Liquid with Temperature Gradient  

Bae, Dae-Seok (부경대학교 기계공학과)
Kim, Jeong-Soo (부경대학교 기계공학과)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.15, no.4, 2011 , pp. 65-72 More about this Journal
Abstract
Numerical simulation has been performed to investigate the bubbly flow in the liquid with vertical temperature gradient. The objective of this study is to establish an accurate numerical prediction program of gas-liquid two-phase flows in a vertical temperature gradient condition, whose mathematical model is formulated by the Eulerian-Lagrangian model. The present numerical results reveal the temperature mixing mechanism and the fluid dynamical characteristics induced by the bubbly flow in the liquid with stratified temperature. The effects of bubble radius, void fraction, and gas flow rate on bubble-driven convective flow are considered, too.
Keywords
Gas-liquid Flow; Eulerian-Lagrangian Model; Temperature Gradient; Bubbly Flow; Convective Flow;
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1 Squires, K. D. and Eaton, J. K., "Particle response and turbulence modification in isotropic turbulence," Phys. Fluids, Vol. 2, Issue 7, 1990, pp.1191-1203   DOI
2 Lu, Q. Q., Fontaine, J. R., and Aubertin, G., "A Lagrangian model for solid particles in turbulent flows," Int'l J. Multiphase Flow, Vol. 19, Issue 2, 1993, pp.347-367   DOI   ScienceOn
3 Stewart, C. W. and Crowe, C. T., "Bubble dispersion in free shear flows," Int'l J. Multiphase Flow, Vol. 19, Issue 3, 1993, pp.501-507   DOI   ScienceOn
4 Murai, Y. and Matsumoto, Y., "Numerical analysis of detailed flow structure in a bubble plume," JSME Int'l J. Series B, Vol. 41, No. 3, 1998, pp.568-574   DOI
5 조남경, 정용갑, 길경섭, 권오성, 김영목, "우주 발사체 액체산소 탱크 내에서의 열적 성층화 현상에 대한 해석적 연구," 한국추진공학회 제 23회 추계학술대회 논문집, 2004, pp.178-183
6 Taylor, G., "The action of a surface current used as a breakwater," Proc. R. Soc. Lond. A, Vol. 231, No. 1187, 1955, pp.466-478   DOI
7 McDougall, T. J., "Bubble plumes in stratified environments," J. Fluid Mech., Vol. 85, Issue 4, 1978, pp.655-672   DOI   ScienceOn
8 Hussain, N. A. and Narang, B. S., "Simplified analysis of air-bubble plumes in moderately stratified environments," J. Heat Transfer, Vol. 106, 1984, pp.543-551   DOI
9 Asaeda, T. and Imberger, J., "Structure of bubble plumes in linearly stratified environments," J. Fluid Mech., Vol. 249, 1993, pp.35-57   DOI   ScienceOn
10 Chen, M. H. and Cardoso, S. S. S., "The mixing of liquid by a plume of low- Reynolds number bubbles," Chemical Engineering Science, Vol. 55, Issue 14, 2000, pp.2585-2594   DOI   ScienceOn
11 Murai, Y., Ohno, Y., Bae, D. S., Hassan, A., Ishikawa, M., and Yamamoto, F., "Bubble-generated convection in immiscible two-phase stratified liquids," Proceedings of ASME FEDSM-01, 2001, pp.481-486
12 Shuen, J. S., Solomon, A. S. P., Faeth, G. M., and Zhang, Q. F., "Structure of particle laden jets: measurements and predictions," AIAA Journal, Vol. 23, Issue 3, 1984, pp.396-404
13 Zhang, D. Z. and Prosperetti, A., "Ensemble phase-averaged equations for bubbly flow," Phys. Fluids, Vol. 6, Issue 9, 1994, pp.2956-2970   DOI   ScienceOn