Abstract
Determination of reference temperature and heat transfer coefficient in case of three temperature problems such as film cooling is one of the fundamental tasks in the design of gas turbines. In the present work, a two-dimensional numerical simulation is carried out for flat surface with 35° angle of injection from slot in case of film cooling problem. The reference temperature, which is represented as film cooling effectiveness, and heat transfer coefficient on the flat surface for different blowing ratio are studied. Heat transfer coefficient obtained from the present simulation is compared with the experimental results from the literature and found to be matching at lower blowing ratios. Turbulence intensity is found to a major contributor in enhancing the heat transfer coefficient. There is an increase in heat transfer with the blowing ratio due to increased turbulence intensity is observed.
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References
Goldstein, R.J., Eckert, E.R.G., Ramsey, J.W.: Film cooling with injection through holes: adiabatic wall temperatures downstream of a circular hole. J. Eng. Power 90(4), 384–393 (1968)
Eriksen, V.L., Goldstein, R.J.: Heat transfer and film cooling following injection through inclined circular tubes. J. Heat Transf. 96(2), 239–245 (1974)
Kadotani, K., Goldstein, R.J.: Effect of mainstream variables on jets issuing from a row of inclined round holes. J. Eng. Power 101(2), 298–304 (1979)
Bergeles, G., Gosman, A.D., Launder, B.E.: Double-row discrete-hole cooling: an experimental and numerical study. J. Eng. Power 102(2), 498–503 (1980)
Walters, D.K., Leylek, J.H.: A systematic computational methodology applied to a three-dimensional film-cooling flow field. ASME J. Turbomach. 119(4), 777–785 (1997)
Papell, S.S.: Effect on gaseous film cooling of coolant injection through angled slots and normal holes. Technical Note D-299, NASA Lewis Research Center (1960)
Fitt, A.D., Ockendon, J.R., Jones, T.V.: Aerodynamics of slot-film cooling: theory and experiment. J. Fluid Mech. 160, 15–27 (1985)
Sarkar, S., Bose, T.K.: Numerical simulation of a 2-D jet-cross flow interaction related to film cooling applications: effects of blowing rate, injection angle and free-stream turbulence. Sadhana 20(6), 915–935 (1995)
Kassimatis, P.G., Bergeles, G.C., Jones, T.V., Chew, J.W.: Numerical investigation of the aerodynamics of the near-slot film cooling. Int. J. Numer. Meth. Fluids 32(1), 85–104 (2000)
Jia, R., Sundén, B., Miron, P., Léger, B.: A numerical and experimental investigation of the slot film-cooling jet with various angles. J. Turbomach. 127(3), 635–645 (2005)
Singh, K., Premachandran, B., Ravi, M.R.: A numerical study on the 2d film cooling of a flat surface. Numer. Heat Transf. Part A Appl. 67(6), 673–695 (2015)
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Ademane, V.G., Hindasageri, V., Kadoli, R. (2019). A Numerical Study on Heat Transfer Characteristics of Two-Dimensional Film Cooling. In: Srinivasacharya, D., Reddy, K. (eds) Numerical Heat Transfer and Fluid Flow. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-1903-7_70
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DOI: https://doi.org/10.1007/978-981-13-1903-7_70
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