Numerical Simulation of Turbine Blade Film-cooling with Different Blowing Ratio and Hole-to-hole Space
Using standard k-ε turbulence model, the temperature field of different location hole rows on leading edge of turbine cascade is numerically simulated. The cooling effective of the various blowing ratio、hole-to-hole spacing and blade suction surface is compared and analyzed. The result shows that the cooling efficiency is proportional to the blowing ratio among 0.6-2.0. The cooling efficiency with the increasing of the blowing ratio the former decline earlier and elevated afterward among 2.0-4.0, Under different hole-to-hole distance conditions, the result shows that the film cooling of hole-to-hole spacing at 4.0D is superior to the distance of 3.0D. The area of film cooling of the smaller hole-to-hole space is better than the bigger hole-to-hole space.
Cascade Suction surface Film cooling Cooling effectiveness Numerical simulation
Li Shaohua Tao Peng Li-xian Liu Ting-ting GUO Bin Yuan
Northeast Dianli University, Jilin, 132012, Jilin Province, China
国际会议
2007杭州国际动力工程会议(The International Conference on Power Engineering 2007)
杭州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）