| 中心进气旋转盘流动与换热的数值研究 |
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| 引用本文： | 徐国强,陶智,丁水汀,罗翔.中心进气旋转盘流动与换热的数值研究[J].航空动力学报,2000,15(2):169-173. |
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| 作者姓名： | 徐国强 陶智 丁水汀 罗翔 |
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| 作者单位： | 北京航空航天大学402教研室,北京100083 |
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| 摘 要： | 本文采用混合长度模型及共轭计算的方法对中心进气转静系旋转盘、腔内的流动与换热进行了数值计算, 并与实验结果进行了比较, 证明混合长度模型对转静系旋转盘、腔的流动与换热的计算是可行的。计算结果显示: 冲击区努赛尔特数最大值不在驻点, 而是偏离驻点一段距离; 随着转速和冷气流量的增加, 盘面换热总体加强。
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| 关 键 词： | 盘 换热 流动 数值计算 |
| 收稿时间： | 7/5/1999 12:00:00 AM |
| 修稿时间： | 1999/9/30 0:00:00 |
Numerical Study on Flow and Heat Tranfer in Shrouded Rotating Disk System with Central Air Inflow |
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| Xu Guoqing,Tao Zhi,Ding Shuiding and Luo Xiang.Numerical Study on Flow and Heat Tranfer in Shrouded Rotating Disk System with Central Air Inflow[J].Journal of Aerospace Power,2000,15(2):169-173. |
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| Authors: | Xu Guoqing Tao Zhi Ding Shuiding and Luo Xiang |
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| Institution: | 4th Dept.Beijing University of Aeronautics and Astronautics,Beijing 100083,China |
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| Abstract: | The mixing length model and conjugation calculation were applied to the numerical simulation for the fluid flow and heat transfer process in a rotating shrouded disk with central coolant inlet.Comparison the simulation results with experiments indicates that the mixing length model gives quite reasonable prediction.Numerical simulation shows that:(1)the location of the maximum Nusselt number was offset from the stagnation point at a certain distance;(2)the heat transfer was enhanced with the increase of rotating speed and coolant flow rate. |
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| Keywords: | rotating disk heat transfer flow numerical computation |
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