多喷嘴带相差射流冲击传热的数值模拟

doi:10.3969/j.issn.0438-1157.2014.z1.039

化工学报 ›› 2014, Vol. 65 ›› Issue (S1): 240-244.DOI: 10.3969/j.issn.0438-1157.2014.z1.039

多喷嘴带相差射流冲击传热的数值模拟

耿丽萍¹, 许庆功², 郑传波¹, 周静伟¹

1. 中国计量学院热能工程系, 浙江杭州 310018;
2. 洛阳理工学院计算机与信息工程系, 河南洛阳 471023

收稿日期:2014-02-10 修回日期:2014-02-17 出版日期:2014-05-30 发布日期:2014-05-30
通讯作者: 周静伟
基金资助:
国家自然科学基金项目（51206153）。

Numerical simulations of impinging heat transfer characteristics for multi-pulsating jets with phase difference

GENG Liping¹, XU Qinggong², ZHENG Chuanbo¹, ZHOU Jingwei¹

1. Department of Thermal Engineering, China Jiliang University, Hangzhou 310018, Zhejiang, China;
2. Department of Computer and Information Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, Henan, China

Received:2014-02-10 Revised:2014-02-17 Online:2014-05-30 Published:2014-05-30
Supported by:
supported by the National Natural Science Foundation of China (51206153).

摘要/Abstract

摘要： 采用数值模拟的方法对带相差的多喷嘴射流冲击传热进行数值模拟，分别得到不同相差和不同射流频率条件下的冲击传热效果。结果显示，在不同的射流喷射模式下，按相差顺序增加方式（B型）喷出的射流传热效果最好，两喷嘴间的相差为0°～180°之间时，传热板的传热效果随着相差角度的增加，传热效果得到增强，且在相差为120°时，整个传热板传热效果最均匀；在频率为0～10Hz时，频率越大，整个传热板传热越均匀，但频率的影响小于相差及喷射模式的影响。

关键词: 相差, 射流冲击, 数值模拟, 对流, 传热

Abstract: A series of numerical simulations for multi-pulsating jets with phase difference are carried out in order to obtain impinging heat transfer characteristics. The results are compared with changed phase difference in jet modes and values and pulse frequency. Jet modes include the symmetrically increasing phase difference (mode A), the gradually increasing phase difference (mode B) and alternative phase difference (mode C). It can be found that mode B with gradually increasing phase mode has the best heat transfer characteristics within this research scope. When the phase difference lies between 0°-180°, the heat transfer characteristics become stronger with the increase of phase difference. When the phase difference is 120°, the heat transfer characteristics are best-distributed on the whole plate. Such well-distribution of heat transfer is also influenced by frequency. And the heat transfer characteristics are better-distributed when the frequency increase in the range of 0-10Hz. However, the influence of frequency is less than those of phase difference in jet modes and values.

Key words: phase difference, jet impingement, numerical simulation, convection, heat transfer

中图分类号:

TK124

耿丽萍, 许庆功, 郑传波, 周静伟. 多喷嘴带相差射流冲击传热的数值模拟[J]. 化工学报, 2014, 65(S1): 240-244.

GENG Liping, XU Qinggong, ZHENG Chuanbo, ZHOU Jingwei. Numerical simulations of impinging heat transfer characteristics for multi-pulsating jets with phase difference[J]. CIESC Journal, 2014, 65(S1): 240-244.

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多喷嘴带相差射流冲击传热的数值模拟

Numerical simulations of impinging heat transfer characteristics for multi-pulsating jets with phase difference

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