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Keywords: film cooling
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. May 2024, 146(5): 053801.
Paper No: HT-23-1205
Published Online: March 4, 2024
...Guoqing Li; Ang Li; Shen Zhang; Chenfeng Wang; Xingen Lu Under the influence of secondary flow, the film cooling deviates from the flow direction on the turbine blade, which directly results in undesirable uneven film coverage. On the pressure side, the film appears divergent, while on the suction...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. May 2024, 146(5): 053802.
Paper No: HT-23-1274
Published Online: March 4, 2024
... of internal enhanced cooling at the endwall backside could be an option, but it increases manufacturing cost, adds weight to the component, causing excessive pressure losses in the secondary air system. Novel film cooling concepts are, therefore, required to provide effective cooling for these difficult...
Journal Articles
Publisher: ASME
Article Type: Review Articles
J. Heat Mass Transfer. March 2021, 143(3): 030801.
Paper No: HT-20-1368
Published Online: December 21, 2020
...Rui Zhu; Guohua Zhang; Shulei Li; Gongnan Xie Film cooling is one of the most efficient and widely used cooling methods for high-temperature components. The interaction between the film cooling jet and main flow creates the counter-rotating vortex pair (CRVP), which enhances the mixing between...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. February 2020, 142(2): 022201.
Paper No: HT-19-1255
Published Online: December 6, 2019
...Jian Liu; Wei Du; Guohua Zhang; Safeer Hussain; Lei Wang; Gongnan Xie; Bengt Sundén Endwall film cooling is a significant cooling method to protect the endwall region and the junction region of endwall and a turbine vane, where usually a relatively high temperature load exists. This work aims...
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. March 2014, 136(3): 031701.
Paper No: HT-13-1218
Published Online: November 15, 2013
... deviation of the local film cooling effectiveness, since θ ¯ ( x 1 , 0 , x 3 ; ξ ) = 1 - η ( x 1 , x 3 ; ξ ) . The region immediately downstream of the jet hole has the largest amount of variability in film cooling effectiveness of σ η...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. January 2013, 135(1): 011010.
Paper No: HT-12-1132
Published Online: December 6, 2012
... at two locations. In the near field ( x/D  = 1), the cooling effectiveness distribution agrees very well with the measurements. This is in contrast with the RANS predictions reported that typically do not correctly predict the lateral distributions of the near-field film cooling effectiveness. Further...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. March 2012, 134(3): 031006.
Published Online: January 11, 2012
... fuels gas turbines syngas film cooling leading edge main body trailing edge endwall tip turn heat transfer coefficient Gas turbines are the workhorse for propulsion and power generation systems. For those well-developed countries, technical advances in gas turbines link directly...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. January 2012, 134(1): 011501.
Published Online: October 28, 2011
...T. S. Dhanasekaran; Ting Wang Film cooling techniques have been successfully applied to gas turbine blades to protect them from the hot flue gas. However, a continuous demand of increasing the turbine inlet temperature to raise the efficiency of the turbine requires continuous improvement in film...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. December 2008, 130(12): 121901.
Published Online: September 15, 2008
...Xianchang Li; Ting Wang Air-film cooling has been widely employed to cool gas turbine hot components, such as combustor liners, combustor transition pieces, turbine vanes, and blades. Studies with flat surfaces show that significant enhancement of air-film cooling can be achieved by injecting water...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. October 2008, 130(10): 102901.
Published Online: August 8, 2008
...Xianchang Li; Ting Wang Effective cooling of gas turbine combustor liners, combustor transition pieces, turbine vanes (nozzles), and blades (buckets) is a critical task to protect these components from the flue gas at extremely high temperature. Air film cooling has been successfully used to cool...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. April 2007, 129(4): 472–482.
Published Online: January 3, 2007
...Xianchang Li; Ting Wang Numerical simulation is performed in this study to explore film-cooling enhancement by injecting mist into the cooling air with a focus on investigating the effect of various modeling schemes on simulation results. The effect of turbulence models, dispersed-phase modeling...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. April 2007, 129(4): 464–471.
Published Online: December 14, 2006
...Sangkwon Na; Tom I-P. Shih A new design concept is presented to increase the adiabatic effectiveness of film cooling from a row of film-cooling holes. Instead of shaping the geometry of each hole; placing tabs, struts, or vortex generators in each hole; or creating a trench about a row of holes...
Journal Articles