| 壁温周期变化引起的一维热声波的数值模拟 |
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| 引用本文： | 白少卿,刘继平,种道彤,周志杰,严俊杰. 壁温周期变化引起的一维热声波的数值模拟[J]. 工程热物理学报, 2008, 29(12) |
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| 作者姓名： | 白少卿 刘继平 种道彤 周志杰 严俊杰 |
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| 作者单位： | 西安交通大学动力工程与多相流重点实验室,陕西,西安,710049 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 本文采用可压缩流动的SIMPLE算法对壁温周期变化引起的气体中的一维热声波的产生和传播进行了数值模拟,分析了其中的流动和换热规律.计算结果表明,壁面温度周期变化可以产生大振幅的热声波,当其达到准平衡状态时温度产生稳态的超温现象,超温幅度的大小和极值的位置随着加热温度的振幅和频率变化而不同.超温现象导致冷壁面的温度梯度增大,强化了介质与冷壁面间的换热.
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| 关 键 词： | 热声波 周期性加热 对流换热 |
NUMERICAL SIMULATION OF ONE-DIMENSIONAL THERMOACOUSTIC WAVES CAUSED BY PERIODICALLY HEATED WALL |
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| BAI Shao-Qing,LIU Ji-Ping,CHONG Dao-Tong,ZHOU Zhi-Jie,YAN Jun-Jie. NUMERICAL SIMULATION OF ONE-DIMENSIONAL THERMOACOUSTIC WAVES CAUSED BY PERIODICALLY HEATED WALL[J]. Journal of Engineering Thermophysics, 2008, 29(12) |
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| Authors: | BAI Shao-Qing LIU Ji-Ping CHONG Dao-Tong ZHOU Zhi-Jie YAN Jun-Jie |
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| Affiliation: | BAI Shao-Qing LIU Ji-Ping CHONG Dao-Tong ZHOU Zhi-Jie YAN Jun-Jie (State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China) |
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| Abstract: | The SIMPLE algorithm for compressible flows was introduced to predict one-dimensional thermoacoustic waves caused by periodically heated wall in a gas filled enclosure,the flow and heat transfer was analyzed.The results showed that thermoacoustic waves with large amplitude could be generated by the periodically change of the temperature on the left wall,and when quasi-equilibrium state was obtained,the phenomenon of excess temperature occurred,the amplitude and position changed with the amplitude and freque... |
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| Keywords: | thermoacoustic waves heated periodically convection heat transfer |
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