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

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Numerical Study of Bubble Growth and Reversible Flow in Parallel Microchannels

병렬 미세관에서의 기포성장 및 역류현상에 관한 수치적 연구

  • 이우림 (서강대학교 대학원 기계공학과) ;
  • 손기헌 (서강대학교 기계공학과)
  • Published : 2008.02.05
Download PDF
⟨ Previous Next ⟩

Abstract

The bubble dynamics and heat transfer associated with nucleate boiling in parallel microchannels is studied numerically by solving the equations governing conservation of mass, momentum and energy in the liquid and vapor phases. The liquid-vapor interface is tracked by a level set method which is modified to include the effects of phase change at the interface and contact angle at the wall. Also, the reversible flow observed during flow boiling in parallel microchannels has been investigated. Based on the numerical results, the effects of contact angle, wall superheat and the number of channels on the bubble growth and reversible flow are quantified.

Keywords

References

  1. Peles, Y. P., Yarin, L. P. and Hetsroni, G., 2001, 'Steady and Unsteady Flow in a Heated Capillary,' Int. J. Multiphase Flow, Vol. 27, pp. 577∼598 https://doi.org/10.1016/S0301-9322(00)00041-0
  2. Jiang, L., Wong, M. and Zohr, Y., 2001, 'Forced Convection Boiling in a Microchannel Heat Sink,' J. Microelectromech. Syst., Vol. 10, pp. 80∼87 https://doi.org/10.1109/84.911095
  3. Lee, M., Wong, Y. Y., Wong, M. and Zohar, Y., 2003, 'Size and Shape Effects on Two-Phase Flow Patterns in Microchannel Forced Convection,' J. Micromech. Microeng., Vol. 13, pp. 155∼164 https://doi.org/10.1088/0960-1317/13/1/322
  4. Balasubramanian, P. and Kandlikar, S. G., 2005, 'Experimental Study of Flow Patterns Pressure Drop, and Flow Instabilities in Parallel Rectangular Minichannels,' Heat Transfer Engineering, Vol. 26, pp. 20~27 https://doi.org/10.1080/01457630590907167
  5. Hetsroni, G., Mosyak, A., Segal, Z. and Ziskind, G., 2002, 'A Uniform Temperature Heat Sink for Cooling of Electronic Devices,' Int. J. Heat Mass Transfer, Vol 45, pp. 3275~3286 https://doi.org/10.1016/S0017-9310(02)00048-0
  6. Li, H. Y., Tseng, F. G. and Pan, C., 2004, 'Bubble Dynamics in Microchannels. Part II: Two Parallel Microchannels,' Int. J. Heat Mass Transfer, Vol. 47, pp. 5591~5601 https://doi.org/10.1016/j.ijheatmasstransfer.2004.02.032
  7. Chang, K. H. and Pan, C., 2007, 'Two-phase Flow Instability for Boiling in a Microchannel Heat Sink,' Int. J. Heat and Mass, Vol. 50, pp. 2078~2088 https://doi.org/10.1016/j.ijheatmasstransfer.2006.11.014
  8. Kandlikar, S. G., Kuan, W. K., Willistein, D. A. and Borrelli, J., 2006, 'Stabilization for Flow Boiling in Microchannels Using Pressure Drop Elements and Fabricated Nucleation Sites,' J. Heat Transfer, Vol. 128, pp. 389~396 https://doi.org/10.1115/1.2165208
  9. 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
  10. Son, G., 2001, 'Numerical Simulation of Bubble Motion During Nucleate Boiling,' Trans. KSME (B), Vol. 25, No. 3, pp. 389~396
  11. 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
  12. Seo, K. and Son, G., 2004, 'Numerical Study of Bubble Growth in a Microchannel,' Trans. of the KSME (B), Vol. 28 No.8, pp. 996~1003 https://doi.org/10.3795/KSME-B.2004.28.8.996
  13. Mukherjee, A. and Kandlikar, S. G., 2005, 'Numerical Simulation of the Growth of a Vapor Bubble During Flow Boiling of Water in a Microchannel,' Microfluidics and Nanofludics, Vol. 1, pp. 137~145 https://doi.org/10.1007/s10404-004-0021-8
  14. Suh, Y. and Son, G., 2006 'Numerical Study on Bubble growth and Droplet Ejection in a Bubble Inkjet Printer,' Trans. KSME (B), Vol. 30, No. 11, pp. 1107~1116 https://doi.org/10.3795/KSME-B.2006.30.11.1107