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TECHNICAL PAPERS: Evaporation, Boiling, and Condensation

Numerical Simulation of Bubble Merger Process on a Single Nucleation Site During Pool Nucleate Boiling

[+] Author and Article Information
G. Son

Department of Mechanical Engineering, Sogang University, Seoul, 121-742, Korea

N. Ramanujapu, V. K. Dhir

Mechanical and Aerospace Engineering Department, University of California, Los Angeles, Los Angeles, CA 90095

J. Heat Transfer 124(1), 51-62 (Aug 16, 2001) (12 pages) doi:10.1115/1.1420713 History: Received February 15, 2001; Revised August 16, 2001
Copyright © 2002 by ASME
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References

Lee,  R. C., and Nydahl,  J. E., 1989, “Numerical Calculation of Bubble Growth in Nucleate Boiling From Inception Through Departure,” ASME J. Heat Transfer, 111, pp. 474–479.
Welch,  S. W. J., 1998, “Direct Simulation of Vapor Bubble Growth,” Int. J. Heat Mass Transf., 41, pp. 1655–1666.
Son,  G., Dhir,  V. K., and Ramanujapu,  N., 1999, “Dynamics and Heat Transfer Associated With a Single Bubble During Nucleate Boiling on a Horizontal Surface,” ASME J. Heat Transfer, 121, pp. 623–631.
Sussman,  M., Smereka,  P., and Osher,  S., 1994, “A Level Set Approach for Computing Solutions to Incompressible Two-Phase Flow,” J. Comput. Phys., 114, pp. 146–159.
Gaertner,  R. F., 1965, “Photographic Study of Nucleate Pool Boiling on a Horizontal Surface,” ASME J. Heat Transfer, 87, pp. 17–29.
Lay,  J. H., and Dhir,  V. K., 1995, “Shape of a Vapor Stem During Nucleate Boiling of Saturated Liquids,” ASME J. Heat Transfer, 117, pp. 394–401.
Wayner, P. C., Jr., 1992, “Evaporation and Stress in the Contact Line Region,” Proceedings of The Engineering Foundation Conference On Pool and External Flow Boiling, V. K. Dhir and A. E. Bergles, eds., Santa Barbara, CA, pp. 251–256.

Figures

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Macro and micro regions used in numerical simulation
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Schematic of the experimental apparatus
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Bubble growth pattern for ΔT=10 K and τw=4.8 msec
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Flow fields during bubble growth and detachment for ΔT=10 K and τw=4.8 msec
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Temperature fields with temperature interval of 1 K for ΔT=10 K and τw=4.8 msec
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Bubble growth and merger pattern for ΔT=10 K and τw=2.4 msec
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Bubble growth and dmerger pattern for ΔT=10 K and τw=1.28 msec
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Flow fields during bubble growth, detachment and merger for ΔT=10 K and τw=1.28 msec
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Temperature fields with temperature interval of 1 K for ΔT=10 K and τw=1.28 msec
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Variation of Nusselt number with time for ΔT=10 K and three different waiting periods: (a) τw=4.8 msec; (b) τw=2.4 msec; and (c) τw=1.28 msec
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Variation of bubble diameter with time for ΔT=10 K and three different waiting periods: (a) τw=4.8 msec; (b) τw=2.4 msec; and (c) τw=1.28 msec
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Comparison of bubble merger patterns on a single nucleation site for ΔT=10 K obtained from (a) numerical simulation with τw=1.28 msec and (b) experiment
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Bubble growth and merger pattern for ΔT=15 K and τw=1.28 msec
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Dependence of vapor removal rate on the wall superheat

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