Internal Wall-Jet Film Cooling with Straight Cylindrical Holes
作者： S. R. Shine , S. Sunil Kumar , B. N. Suresh
DOI: 10.2514/1.T3847
关键词: Materials science 、 Vortex 、 Heat flux 、 Jet (fluid) 、 Mechanics 、 Mixing (process engineering) 、 Coolant 、 Electrical conductor 、 Vorticity 、 Momentum
摘要: of vortices created downstream the coolant injection andthe jet exit momentum. It is observed that higher mixing with mainstream and high vorticity levels negates presence more availability at blowing ratios results in an optimum ratio for a given geometric configuration. Higher effectiveness obtainedfortheconjugatewallsthroughoutthetestsectionexceptatregionsveryclosetothecoolantinjection. High conductive walls produced negative heat flux condition immediately exit, indicating highly wall not proper choice internal wall-jet film-cooling applications. The could provide useful input analysis optimization straight cylindrical holes.
sci-hub.se 参考文章(41)
Philip D. Neufeld, A. R. Janzen, R. A. Aziz, Empirical Equations to Calculate 16 of the Transport Collision Integrals Ω(l, s)* for the Lennard‐Jones (12–6) Potential Journal of Chemical Physics. ,vol. 57, pp. 1100- 1102 ,(1972) , 10.1063/1.1678363
Frederick F. Simon, Jet model for slot film cooling with effect of free-stream and coolant turbulence NASA STI/Recon Technical Report N. ,vol. 87, pp. 18034- ,(1986)
Kiran H. Dellimore, Carlos S. Cruz, Andre W. Marshall, Christopher P. Cadou, Influence of a Streamwise Pressure Gradient on Film-Cooling Effectiveness Journal of Thermophysics and Heat Transfer. ,vol. 23, pp. 120- 128 ,(2009) , 10.2514/1.35717
C.S. Yang, T.L. Kung, C. Gau, Heat transfer process under a film-cooled surface with presence of weak swirling flow in the mainstream Experimental Thermal and Fluid Science. ,vol. 32, pp. 632- 640 ,(2007) , 10.1016/J.EXPTHERMFLUSCI.2007.08.001
S. R. Shine, S. Sunil Kumar, B. N. Suresh, Influence of coolant injector configuration on film cooling effectiveness for gaseous and liquid film coolants Heat and Mass Transfer. ,vol. 48, pp. 849- 861 ,(2012) , 10.1007/S00231-011-0936-Z
H.I. Abu-Mulaweh, T.S. Chen, B.F. Armaly, Turbulent mixed convection flow over a backward-facing step - the effect of the step heights International Journal of Heat and Fluid Flow. ,vol. 23, pp. 758- 765 ,(2002) , 10.1016/S0142-727X(02)00191-1
Mohamed G. Ghorab, Adiabatic and conjugate cooling effectiveness analysis of a new hybrid scheme International Journal of Thermal Sciences. ,vol. 50, pp. 965- 983 ,(2011) , 10.1016/J.IJTHERMALSCI.2011.01.012
R. CARL STECHMAN, JOELEE OBERSTONE, J. C. STECHMAN, Design criteria for film cooling for small liquid-propellant rocket engines. Journal of Spacecraft and Rockets. ,vol. 6, pp. 97- 102 ,(1969) , 10.2514/3.29545
Shyang-Lin Kuo, Neng-Li Zhang, Wen-Jei Yang, Role of mainstream flow velocity in film cooling in a duct Journal of Thermophysics and Heat Transfer. ,vol. 10, pp. 382- 384 ,(1996) , 10.2514/3.800