Browse > Article

Heat Transfer Characteristics under Recirculation zone of Ramjet Combustor  

Lee, Keon-Woo (연세대학교 대학원 기계공학과)
Oh, Min-Keun (연세대학교 대학원 기계공학과)
Ham, Hee-Chul (국방과학연구소 제1기술연구본부)
Hwang, Ki-Young (국방과학연구소 제1기술연구본부)
Cho, Hyung-Hee (연세대학교 기계공학부)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.11, no.6, 2007 , pp. 9-17 More about this Journal
Abstract
This experimental study has been conducted to investigate the effect of the recirculation zone on the multi-slot film cooling in the ramjet combustor. The recirculation zone which is generated by the protrusion tip on the entrance of the coolant flow path affects on the first slot. Velocity fields, dimensionless temperature fields and adiabatic film cooling effectiveness on the downstream wall of the slot exit are measured. The results show that the film cooling performance is rapidly decreased after the slot exit by shear layer and high turbulence intensity between separated flows and coolant flows.
Keywords
Ramjet Combustor; Recirculation Zone; Slot Film Cooling; Film Cooling Effectiveness;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 R. A. Seban and I. H. Back, "Velocity and temperature profiles in turbulent boundary layers with tangential injection." J. Heat Transfer, Trans. A.S.M.E. eries C, 84, 1962, pp.45-54   DOI
2 Hatch and Papell, "Use of theoretical flow to correlate data for film cooling of heating and adiabatic wall by tangential injection of gases of different fluid properties." NASA TN D-130, 1959
3 Z. Wang, P. T. Ireland and T. V. Jones, 1996, "A Color image processing system for transient liquid crystal heat transfer experiments" J. of Turbomachinery, vol. 118, pp.421-427   DOI   ScienceOn
4 Seban, R. A., "Heat transfer and effectiveness for a turbulent boundary layer with tangential fluid injection," ASME J. of Heat Transfer, 1960, pp. 303-312
5 J. K. Ham, H. H. Cho, "Influence of injection type and feed arrangement on flow and heat transfer in an injection slot" ASME J. of Turbomachinery, Vol. 124, 2002, pp.132-141   DOI
6 성홍계, 윤현걸, "램제트/스크램제트의 기술동향과 소요기술 분석 I . 램제트 엔진(액체램제트, 덕티드로켓)", 한국추진공학회논문집 제10권 제1호, 2006, pp.72-86
7 Goldstein, R. J., "Film Cooling", Advances Heat Transfer, Academic Press, Vol. 7, 1974, pp.321-379
8 K. H. Platzer, C. Hirsch, D. E. Metzer and S. Wittig, 1992, "Computer-based areal surface temperature and local heat transfer measurements with thermochromic liquid crystals(TLC)" Experiments in Fluids, vol. 13, pp.26-32   DOI
9 J. Klein and M. Tribus, "Forced convection from non-isothermal surfaces." Heat transfer symposium, University of Michigan Press, Michigan, 1953
10 J. L. Stollery and A. A. M. El-Ehwany, "A note on the use of a boundary layer model for correlating film cooling data", Int. J. Heat Mass Transfer, Vol. 8, 1964, pp.55-65   DOI   ScienceOn
11 S. C. Kacker, J. H. Whitelaw, "The effect of slot height and slot turbulence the effectiveness of the uniform density, two dimensional wall jet", ASME, J. of Heat Transfer, 1968, pp.469-475
12 D. H. Lee, J. H. Chung and S. Y. Won, 2000, "A new liquid crystal color calibration technique using neural networks and median filtering." KSME International Journal, vol. 14, pp.113-120