Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Numerical Simulation of Bubble Motion During Nucleate Boiling

핵비등에서의 기포거동에 관한 수치해석

  • Published : 2001.03.01
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Abstract

Direct numerical simulation of bubble growth and merger process on a single nucleation site during partial nucleate boiling is performed. The equations governing conservation of mass, momentum and energy are solved using a finite difference method combined with a level set method for capturing the vapor-liquid interface. The level set method is modified to include the effects of phase change at the interface and contact angle at the wall. Also, a simplified formulation for predicting the evaporative heat flux in a thin liquid micro-layer is developed and incorporated into the level set formulation. Based on the numerical results, the bubble growth and merger pattern and its effect on the heat transfer are discussed.

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References

  1. Lee, R. C. and Nydahl, J. E., 1989, 'Numerical Calculation of Bubble Growth in Nucleate Boiling From Inception Through Departure,' J. Heat Transfer, Vol. 111, pp. 474-479
  2. Welch, S. W. J., 1998, 'Direct Simulation of Vapor Bubble Growth,' Int. J. Heat Mass Transfer, Vol. 41, pp. 1655-1666 https://doi.org/10.1016/S0017-9310(97)00285-8
  3. Takata, Y., Shirakawa, H., Kuroki, T. and Ito, T., 1998, 'Numerical Analysis of Single Bubble Departure from a Heated Surface,' Proc. 11th Int. Heat Transfer Conf., Vol. 4, pp. 355-360
  4. Sussman, M., Smereka, P. and Osher, S., 1994, 'A Level Set Approach for Computing Solutions to Incompressible Two-Phase Flow,' J. Comput. Phys., Vol. 114, pp. 146-159 https://doi.org/10.1006/jcph.1994.1155
  5. 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,' J. Heat Transfer, Vol. 121, pp. 623-631
  6. Wayner, P. C. Jr., 1992, 'Evaporation and Stress in the Contact Line Region,' Proc. The Engineering Foundation Conf. On Pool and External Flow Boiling, pp. 251 -256
  7. Lay, J. H. and Dhir, V. K., 1995, 'Shape of a Vapor Stem During Nucleate Boiling of Saturated Liquids,' J. Heat Transfer, Vol. 117, pp. 394-401
  8. Khrustalev, D. and Faghri, A., 1995, 'Heat Transfer During Evaporation on Capillary-Grooved Structures of Heat Pipes,' J. Heat Transfer, Vol. 117, pp. 740-747
  9. 손기헌, 이상렬, 1999, '수중에서 상승하는 기포거동에 관한 수치해석,' 대한기계학회논문집 B권, 제23권 제12호, pp. 1606-1613
  10. Siegel, R. and Keshock, E. G., 1964, 'Effects of Reduced Gravity on Nucleate Boiling Bubble Dynamics in Saturated Water,' AICHE J., Vol. 10, pp. 509-517 https://doi.org/10.1002/aic.690100419
  11. Dhir, V. K., 1998, Personal Communication