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

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

DOI QR Code

The Study of Heat Transfer on a Heated Circular Surface by an Impinging, Circular Water Jet with the Low Velocity Against the Direction of Gravity

중력방향과 대향류인 저속 원형노즐 제트충돌에 의한 원형평판에서의 열전달 현상

  • Published : 2009.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

The heat transfer phenomenon was investigated in this study when a circular water jet with low velocity flows to the downward facing heated circular plate and against the direction of gravity. Data are presented for jet flow rate between 0.23 and 2.3 l/min, jet fluid temperature of 24$^{\circ}C$, heat fluxes between 345 and 687 W/m$^2$, H/D=1, 2 and 3 with a single round jet diameter 2mm. The effects of heat flux, jet velocity and H/D on the local heat transfer are investigated in for the various regions of jet impingement. The local heat transfer distributions are analyzed based on the visualization of jet flow field. Data from experimental results are correlated by expressions of the form Nu=0.01$Re^{0.58}{\cdot}Pr^{0.4}$.

Keywords

References

  1. Martin, H., 1977, "Heat and Mass Transfer Between Impinging Gas Jets And Solid Surfaces," Adv. Heat Transfer, Vol. 13, pp. 1-60 https://doi.org/10.1016/S0065-2717(08)70221-1
  2. Hoogendoorn, C. J., 1977, ' The effect of turbulence on heat transfer at a stagnation point,' Int. J. Heat and Mass Transfer, Vol. 20, pp. 1333-1338 https://doi.org/10.1016/0017-9310(77)90029-1
  3. Yule, A. J., 1978, ' Large-scale structure in the mixing layer of a round jet,' J. Fluid Mech.,Vol. 87, part 3, pp. 413-432 https://doi.org/10.1017/S0022112078002670
  4. Kataoka, K., Mihata, I., Maruo, K., Suguro, M. and Chiguesa, T., 1986, ' Quasi-periodic Large-scale Structure Responsible for the Selective Enhancement of Impinging Jet Heat transfer,' Procd. fo the 8th IHTC, Vol. 37, pp. 1915-1198
  5. Zumbrunnen, D. A., Incropera, F. P., Viskanta, R., 1989, ' Convective Heat Transfer distribution on a Plate Cooled by a Planar Water Jet,' ASME J. Heat Transfer, Vol. 111, pp. 889-896 https://doi.org/10.1115/1.3250802
  6. Vader, D. T., Incropera, F. P., Viskanta, R., March 1991, ' Local convective heat transfer from a heated surface to an impinging, planar jet of water,' International Journal of Heat and Mass Transfer, Volume 34, Issue 3, pp. 611-623 https://doi.org/10.1016/0017-9310(91)90110-Z
  7. Lee, D. H., Chung, Y. S., Kim, D. S. and Lim, K. B., 1997, ' Heat Transfer and Flow Characteristics of a Circular Jet Impinging on a Convex Curved Surface,' Trans. of the KSME(B), Vol. 21, No. 4, pp. 579-588
  8. Sung Kook Hong, Hyung Hee Cho, 2005, ' The Review of Studies on Heat Transfer in Impinging Jet,' Int. J. Air-Conditioning and Refrigeration, Vol. 13, No.4, pp. 196-205
  9. Tsuneo AZUMA , Tatsuroh HOSHINO, August 1984, ' The Radial Flow of a Thin Liquid Film(1st report, Laminar-turbulent Transition),' Buletin of JSME, Vol. 27, No. 234, pp. 2739-2746 https://doi.org/10.1299/jsme1958.27.2739
  10. Tsuneo AZUMA, Tatsuroh HOSHINO, August 1984, ' The Radial Flow of a Thin Liquid Film(2nd Report, Liquid film Thickness),' Buletin of JSME, Vol. 27, No. 234, pp. 2747-2754 https://doi.org/10.1299/jsme1958.27.2747
  11. Tsuneo AZUMA, Tatsuroh HOSHINO, August 1984, ' The Radial Flow of a Thin Liquid Film(3th report, Velocity Profile),' Buletin of JSME, Vol. 27, No. 234, pp. 2755-2762 https://doi.org/10.1299/jsme1958.27.2755
  12. Tsuneo AZUMA, Tatsuroh HOSHINO, December 1984, ' The Radial Flow of a Thin Liquid Film (4th Report, Stability of Liquid Filmand Wall Pressure Fluctuation),' Buletin of JSME, Vol. 27, No. 234, pp. 2763-2770 https://doi.org/10.1299/jsme1958.27.2763
  13. Tsuneo AZUMA, Tatsuroh HOSHINO, August 1985, ' The Radial Flow of a Thin Liquid Film(5th report, Influence of Wall Roughness On Laminar-turbulent Transition),' Buletin of JSME, Vol. 28, No. 242, pp. 1682-1689 https://doi.org/10.1299/jsme1958.28.1682
  14. Wadsworth, D. C. and Mudawar, 1990, ' Cooling of a Multichip Electronic Module by Means of Confined Two-Dimensional Jets of Dielectric Liquid,' ASME J. Heat Transfer, Vol. 112, pp. 891-898 https://doi.org/10.1115/1.2910496