Improving Film Cooling Performance by Using One -Inlet and Double-Outlet Hole
文献类型：期刊论文
| 作者 | Guang-chao Li; Wei Zhang |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2010 |
| 卷号 | 19期号:5页码:430,437 |
| 关键词 | Aerospace Propulsion System Gas Turbine Film Cooling Heat Transfer |
| 英文摘要 | The film cooling performance of a trunk-branch hole is investigated by numerical simulation in this paper. The geometry of the hole is a novel cooling concept, which controls the vortices-pair existing at the trunk hole outlet using the injection of the branch hole. The trunk-branch holes require easily machinable round hole as compared to the shaped holes. The flow cases were considered at the blowing ratios of0.5, 0.75, 1.0, 1.5 and 2.0. At the low blowing ratio of 0.5, the vortices-pair at the outlet of the trunk hole is reduced and the laterally coverage of the film is improved. At the high blowing ratio of 2.0, the vortices-pair is killed by the vortex which is produced by the injection of the branch hole. The flow rate of the two outlets becomes more significantly different when the blowing ratio increases from 0.75 t0 2.0. The discharge coefficients increase 0.15 and the laterally averaged film effectiveness improve 0.2 as compared to the cylindrical holes. The optimal blowing ratios occur at M=l.0 0r M=1.5 according to the various locations downstream of the holes. |
| 公开日期 | 2013-01-06 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/51665]  |
| 专题 | 工程热物理研究所_Journal of Thermal Science |
| 推荐引用方式 GB/T 7714 | Guang-chao Li,Wei Zhang. Improving Film Cooling Performance by Using One -Inlet and Double-Outlet Hole[J]. JOURNAL OF THERMAL SCIENCE,2010,19(5):430,437. |
| APA | Guang-chao Li,&Wei Zhang.(2010).Improving Film Cooling Performance by Using One -Inlet and Double-Outlet Hole.JOURNAL OF THERMAL SCIENCE,19(5),430,437. |
| MLA | Guang-chao Li,et al."Improving Film Cooling Performance by Using One -Inlet and Double-Outlet Hole".JOURNAL OF THERMAL SCIENCE 19.5(2010):430,437. |
入库方式： OAI收割
来源：工程热物理研究所
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