| 脉动燃烧器内流场的数值模拟 |
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| 引用本文： | 严红,陈福连,吴心平. 脉动燃烧器内流场的数值模拟[J]. 燃烧科学与技术, 2001, 7(2): 203-207 |
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| 作者姓名： | 严红 陈福连 吴心平 |
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| 作者单位： | 1. 清华大学工程力学系,
2. 浙江工业大学机电工程学院, |
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| 摘 要： | 建立了Rijke型脉动燃烧器内自激脉动流动的数学,并采用TVD格式求解了二维非稳态可压流N－S方程，讨论了加热量对脉动流动及对流传热过程的影响，认为速度脉动幅度对对流传热系数的影响比较大，在脉动速度分量波动较大的地方，对流传热系数增加的幅度加大。证明了在Rijke型脉动燃烧器中自激脉动流动增大了对流传热系数。
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| 关 键 词： | 流场 数值模拟 传热过程 脉冲燃烧器 |
| 文章编号： | 1006-8740(2001)02-0203-05 |
| 修稿时间： | 1999-02-02 |
Numerical Simulation ofSelf-oscillated Flows in Tubes |
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| YAN Hong,CHEN Fu-lian,WU Xin-ping. Numerical Simulation ofSelf-oscillated Flows in Tubes[J]. Journal of Combustion Science and Technology, 2001, 7(2): 203-207 |
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| Authors: | YAN Hong CHEN Fu-lian WU Xin-ping |
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| Affiliation: | YAN Hong 1,CHEN Fu lian 2,WU Xin ping 2 |
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| Abstract: | A numerical model is proposed for self oscillated flows in Rijke type pulsating combustors.TVD schemes are utilized to solve the two dimensional unsteady N S equations of compressible flows.The effects of the energy release on pulsating flows and heat transfer processes are considered.Amplitudes of pulsating velocities have been found to play an important role in convective heat transfer enhancement,which is improved owing to larger amplitudes of the pulsating velocities.The results suggest that self oscillated flows in Rijke type combustors enhance the convective heat transfer rates. |
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| Keywords: | pulsating flows numerical simulation heat transfer TVD schemes |
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