| 有轴向通流的双旋转轴间流动换热的数值模拟 |
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| 引用本文： | 付德斌,丁水汀,徐国强,陶智.有轴向通流的双旋转轴间流动换热的数值模拟[J].北京航空航天大学学报,2003,29(8):691-695. |
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| 作者姓名： | 付德斌 丁水汀 徐国强 陶智 |
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| 作者单位： | 北京航空航天大学 能源与动力工程学院, 北京 100083 |
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| 摘 要： | 采用混合长度模型,用共轭数值计算的方法研究了具有轴向通流且内轴加热情况下的双旋转轴间的换热,得到了内轴、双轴间隙内的温度场,内轴外壁面的温度分布情况,内轴外壁面对流换热系数的分布情况,并与实验结果进行了比较,结果表明:经过修正的混合长度模型对具有轴向通流的双旋转轴间换热情况的计算是可行的.
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| 关 键 词： | 航空发动机 数值计算 传热 双旋转轴 混合长度 |
| 文章编号： | 1001-5965(2003)08-0691-05 |
| 收稿时间： | 2002-06-27 |
| 修稿时间： | 2002年6月27日 |
Numerical investigation on heat transfer in an annulus between independently rotating cylinders with turbulent axial flow |
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| Fu Debin,Ding Shuiting,Xu Guoqiang,Tao Zhi.Numerical investigation on heat transfer in an annulus between independently rotating cylinders with turbulent axial flow[J].Journal of Beijing University of Aeronautics and Astronautics,2003,29(8):691-695. |
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| Authors: | Fu Debin Ding Shuiting Xu Guoqiang Tao Zhi |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | Heat transfer in the air gap of two rotating cylinders was numerically studied, based on the mixing length turbulent model. Temperature field of annulus, temperature distributions and heat transfer coefficient distributions on inner cylinder surface were calculated and compared with experimental results. The results show that the mixing length turbulent model is applicable for the simulation of heat transfer in the annulus between independently rotating cylinders. |
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| Keywords: | aircraft engines numerical computation heat transfer annulus mixing length |
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