| 热横向射流近壁区的温度变化研究 |
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| 引用本文： | 王海军,卢冬华,罗毓珊,陈听宽,毛庆,黄伟.热横向射流近壁区的温度变化研究[J].西安交通大学学报,2001,35(5):459-462. |
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| 作者姓名： | 王海军 卢冬华 罗毓珊 陈听宽 毛庆 黄伟 |
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| 作者单位： | 1. 西安交通大学能源与动力工程学院,
2. 中国核动力研究设计院设计所 |
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| 基金项目： | 国家自然科学基金资助项目（59995460－3）；中国核动力研究设计院资助项目． |
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| 摘 要： | 当热射流垂直入射至主流中时，在宽广的射流与主流流速比（0．01－1．50）下，测量了3个不同区域内近壁区流体的温度随流速比变化，通过实验发现，横向射流的流动形式复杂，不同区域近壁区流体的温度随流速比变化的情况不尽相同，在射流下游区，当流速比大于0．40以后，射流核心区已基本离开近壁处，在射流管出口处，低流速比时射流出口温度分布极不均匀，在射流管内，低流速比时存在有紊动区，当流速比大于0．05以后，射流管内温度已不受主流的.影响。
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| 关 键 词： | 横向射流 流速比 近壁区 温度变化 |
| 文章编号： | 0253-987X（2001）05-0459-04 |
| 修稿时间： | 2000年7月12日 |
Study on Near Wall Temperature Variation of Heated Jet in Crossflow |
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| Wang Haijun,Lu DongHua,Luo Yushan,CHEN Tingkuan,Mao Qing,Huang Wei.Study on Near Wall Temperature Variation of Heated Jet in Crossflow[J].Journal of Xi'an Jiaotong University,2001,35(5):459-462. |
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| Authors: | Wang Haijun Lu DongHua Luo Yushan CHEN Tingkuan Mao Qing Huang Wei |
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| Institution: | Wang Haijun 1,Lu Donghua 1,Luo Yushan 1,Chen Tingkuan 1,Mao Qing 2,Huang Wei 2 |
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| Abstract: | The near wall temperature distribution in three different areas were measured for a hot jet injected vertically down to the main flow. It is a function of the velocity ratio between the hot jet and the main flow. Flows with velocity ratio between 0 01 and 1 50 were measured. It was found that downstream of the hot jet when velocity ratio is larger than 0 40 the core of the hot jet is away from the wall. The temperature distribution at the inlet of the hot jet is quite uneven when velocity ratio is small and there is turbulent region inside the hot jet tube. But this effect of the main flow to the flow inside the hot jet tube disappears after the velocity ratio become larger than 0 05. |
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| Keywords: | jet in crossflow velocity ratio near wall area temperature variation |
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