| 气冷涡轮叶片三维换热问题计算 |
| |
| 引用本文： | 张丽芬,刘振侠,廉筱纯.气冷涡轮叶片三维换热问题计算[J].航空动力学报,2007,22(8):1268-1272. |
| |
| 作者姓名： | 张丽芬 刘振侠 廉筱纯 |
| |
| 作者单位： | 西北工业大学,动力与能源学院,西安,710072;西北工业大学,动力与能源学院,西安,710072;西北工业大学,动力与能源学院,西安,710072 |
| |
| 摘 要： | 建立了三维气冷涡轮叶片换热计算的热-流耦合计算模型, 将辐射热量作为源项加入到方程中, 采用热-流耦合方法完成了某气冷涡轮叶片带辐射的三维换热计算.辐射热量的计算采用了P-1辐射模型, 比较了计算辐射和不计辐射时叶片表面的温度值及温度分布的差异.计算表明对于1600 K这样的高温燃气, 辐射热量不可忽略, 考虑辐射热量后, 叶片温度明显升高, 温度分布也产生了显著差异.
|
| 关 键 词： | 航空、航天推进系统 热-流耦合方法 气冷涡轮叶片 耦合换热 辐射 |
| 文章编号： | 1000-8055(2007)08-1268-05 |
| 收稿时间： | 2006/7/10 0:00:00 |
| 修稿时间： | 2006年7月10日 |
Numerical study of 3D heat transfer for turbine blade with air cooling |
| |
| ZHANG Li-fen,LIU Zhen-xia and LIAN Xiao-chun.Numerical study of 3D heat transfer for turbine blade with air cooling[J].Journal of Aerospace Power,2007,22(8):1268-1272. |
| |
| Authors: | ZHANG Li-fen LIU Zhen-xia and LIAN Xiao-chun |
| |
| Institution: | School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China |
| |
| Abstract: | A coupled flow-thermal model was established for 3D heat transfer of turbine blade with air cooling.Radiation heat was added into the energy equation as a source of heat radiation.Using coupled flow-thermal model,3-D conjugated heat transfer for turbine blade with air cooling was accomplished.And,heat radiation was solved with P-1 model.The different surface temperatures and temperature distributions of the blades with/without heat radiation was compared.The results show that,for high-temperature gas at 1 600 K,heat radiation is a significant heat source.If radiation heat is considered,the surface temperature of the blade is improved greatly,leading to obvious difference of temperature distribution. |
| |
| Keywords: | aerospace propulsion system coupled flow-thermal method turbine blade with air cooling conjugate heat transfer radiation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
