Advanced SearchSearch Tips
Effect of the Hydraulic Boundary Layer on the Convective Heat Transfer in Porous Media
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Effect of the Hydraulic Boundary Layer on the Convective Heat Transfer in Porous Media
Jin, Jae-Seek; Lee, Dae-Young; Kang, Byung-Ha;
  PDF(new window)
Convective heat transfer in a channel filled with porous media has been analyzed in this paper. The two-equation model is applied for the heat transfer analysis with the velocity profile, considering both the inertia and viscous effects. Based on a theoretical solution, the effect of the velocity profile on the convective heat transfer is investigated in detail. The Nusselt number is obtained in terms of the relevant physical parameters, such as the Biot number for the internal heat exchange, the ratio of effective conductivities between the fluid and solid phases, and hydraulic boundary layer thickness. The results indicate that the influence of the velocity profile is characterized within two regimes according to the two parameters, the Biot number and the conductivity ratio between the phases. The decrease in the heat transfer due to the hydraulic boundary layer thickness is 15% at most within a practical range of the pertinent parameters.
Porous Media;Hydraulic Boundary Layer;Convective Heat Transfer;
 Cited by
발포금속을 삽입한 밀집형 열교환기 최적 설계,이대영;진재식;강병하;

설비공학논문집, 2001. vol.13. 7, pp.612-620
핀-휜 구조물을 이용한 채널의 냉각특성 해석,신지영;손영석;이대영;

설비공학논문집, 2003. vol.15. 8, pp.667-673
핀-휜을 삽입한 채널의 열전달 및 압력강하 특성 실험,신지영;손영석;김상민;이대영;

설비공학논문집, 2004. vol.16. 7, pp.623-629
핀-휜 구조물을 삽입한 채널의 열전달 특성과 압력강하에 관한 수치해석,허주녕;김지훈;손영석;신지영;

한국마린엔지니어링학회지, 2011. vol.35. 2, pp.224-231 crossref(new window)
Koh, J. C. Y. and Stevens, R. L., 1975, 'Enhancement of Cooling Effectiveness by Porous Materials in Coolant Passage,' ASME J Heat Transfer, Vol. 97, pp. 309-311

Kuzay, T. M., Collins, J. T., Khounsary, A. M., and Morales, G., 1991, 'Enhanced Heat Transfer with Metal-Wool-Filled Tubes,' Proc. ASME/JSME Thermal Eng. Conf., pp. 145-151

Fu, W.-S., Huang, H.-C., and Liou, W.-Y., 1996, 'Thermal Enhancement in Laminar Channel Flow with a Porous Block.' Int. J. Heat Mass Transfer, Vol. 39, pp.2165-2175 crossref(new window)

Vafai, K. and Tien, C. L., 1981, 'Boundary and Inertia Effects on Flow and Heat Transfer in Porous Media,' Int. J. Heat Mass Transfer, Vol. 24, pp. 195-203 crossref(new window)

Beckermann C. and Viskanta R., 1987, 'Forced Convection Boundary Layer Flow and Heat Transfer Along a Flat Plate Embedded in a Porous Medium,' Int. J. Heat Mass Transfer, Vol. 30, pp.1547-1551 crossref(new window)

Vafai, K. and Kim, S. J., 1989, 'Forced Convection in a Channel Filled With a Porous Medium : An Exact Solution,' ASME J. Heat Transfer, Vol. 111, pp. 1103-1106

Lee, D.-Y. and Vafai, K., 1999, 'Analytical Characterization and Conceptual Assessment of Solid and Fluid Temperature Differentials in Porous Media,' Int. J. Heat Mass Transfer, Vol. 42, pp. 423-435 crossref(new window)

Kim, S. J. and Kim, D., 1999, 'Forced Convection in Microstructures for Electronic Equipment Cooling,' ASME J. Heat Transfer Vol. 121, pp. 635-645

Beavers, G. S. and Sparrow, E. M., 1969, 'Non-Darcy Flow through Fibrous Media,' J. appl. Mech., Vol. 36, pp. 711-714