Kyung Min Kim, Namgeon Yun, Yun Heung Jeon, Dong Hyun Lee, Hyung Hee Cho, Sin-Ho Kang
The Journal of Mechanical Science and Technology, vol. 24, no. 9, pp.1939-1946, 2010

Abstract : Prediction of temperature distributions on hot components is important in development of a gas turbine combustion liner. The present study investigated conjugated heat transfer to obtain temperature distributions in a combustion liner with six combustion nozzles. 3Dnumerical simulations using FVM commercial codes, Fluent and CFX were performed to calculate combustion and heat transfer distributions. The temperature distributions in the combustor liner were calculated by conjugation of conduction and convection (heat transfer coefficients) obtained by combustion and cooling flow analysis. The wall temperature was the highest on the attachment points of the combustion gas from combustion nozzles, but the temperature gradient was high at the after shell section with low wall temperature.

Keyword : At Gas turbine combustion liner; Conjugated heat transfer; Internal cooling passage; Thermal analysis