...Jianian Chen; Yu Rao; Qi Wang; Ce Liang; Li Yang In this study, an innovative guiding pin-fin array optimization has been developed through three-dimensional numerical simulations to enhance the cooling efficiency of gas turbine blade trailing edge. The guiding pin-fin array is optimized using...

...-sheet TPMS structure could effectively improve the heat transfer performance, temperature uniformity, and structural integrity in the turbine blades' trailing edge, thereby potentially extending the durability of the turbine blades. gas turbine heat transfer thermal performance trailing edge...

...Bai-Tao An; Jian-Jun Liu; Si-Jing Zhou Multirow film cooling is widely used in gas turbine airfoils cooling to cope with extremely high inlet temperature. The film cooling effectiveness of diffusion slot holes was measured in multirow arrays at a flat plate experimental facility using the pressure...

..., indicating a wide range of air Nusselt numbers even for the same air Reynolds number. In the air-cooled gas turbine, the cooling airflow rate was almost proportional to the main airflow rate. This was because the cooling air was bled from the compressor, such that the ratio of the airflow rates was almost...

...Jun Su Park; Eui Yeop Jung; Dong Hyun Lee; Kyung Min Kim; Beom Soo Kim; Byoung Moon Chang; Hyung hee Cho It is 1.0–2.0 in a real gas turbine and the values of φ were tested from 1.3–4.2 in this study, which are equivalent to the rod-passing frequencies, f , from 24.9–77.2 Hz, and the rod...

... gas turbine density ratio compound shaped hole axial shaped hole PSP The present study focuses on external film-cooling, one of the heavily relied upon cooling techniques for gas turbines. With film-cooling, relatively cool air forms a protective film on the outer surface of the airfoil...

... and boundary layer unsteadiness. 18 09 2011 04 03 2012 09 07 2012 09 07 2012 thin film gauges gas turbine convective heat transfer The thermal design, evaluation, and management of turbomachinery components require invariant descriptors of the heat transfer process...

... induced secondary flow on the heat transfer coefficient was not as significant as that for the smooth channel case. References 1 Han , J. C. , Dutta , S. , and Ekkad , S. V. , 2000 , Gas Turbine Heat Transfer and Cooling Technology , Taylor & Francis , New York . 2 Han...

... factors increased with rotation number due to the increased Sherwood number ratios and decreased friction factor ratios. 30 08 2010 12 08 2011 27 10 2011 27 10 2011 channel flow gas turbines heat transfer mass transfer rotational flow swirling flow turbulence gas...

... 07 07 2010 13 08 2010 13 08 2010 blades cooling jets mass transfer rotational flow stagnation flow turbines impingement/effusion cooling gas turbine heat transfer Coriolis force rotation Recent increase in turbine inlet temperatures necessitates more...

..., the heat/mass transfer analogy factor is applied and shows a good agreement between heat transfer and mass transfer results on the endwall with the fillets from the leading edge to the trailing edge. 29 06 2007 08 05 2008 14 10 2008 blades boundary layers gas turbines heat...

...Jaeyong Ahn; M. T. Schobeiri; Je-Chin Han; Hee-Koo Moon Detailed film cooling effectiveness distributions are measured on the leading edge of a rotating gas turbine blade with two rows (pressure-side row and suction-side row from the stagnation line) of holes aligned to the radial axis using...