| 旋转射流作用下吸气流动的特性研究 |
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| 引用本文： | 王鹏飞,刘荣华,丘汉锋,王维建.旋转射流作用下吸气流动的特性研究[J].环境工程,2011,29(3):58-62. |
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| 作者姓名： | 王鹏飞 刘荣华 丘汉锋 王维建 |
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| 作者单位： | 1. 中南大学资源与安全工程学院,长沙,410083
2. 湖南科技大学能源与安全工程学院,湖南湘潭,411201 |
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| 基金项目： | 国家自然科学基金，国家安全监察局安全生产科技发展指导性计划项目 |
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| 摘 要： | 通过试验对旋转射流作用下吸气流动进行了较全面的研究,研究内容包括临界送风速度、最佳喷口宽度及吸气流场特性等。结果表明:旋转射流作用下吸气流动存在一个临界送风速度,且其与排风量、喷口宽度及射流轴向倾角等因素有关;存在一个临界吹吸比为最小值所对应的最佳喷口宽度;旋转射流屏蔽作用下的抽吸流场具有中部压力较低和提高抽吸能力的作用;旋转射流作用下吸气流动不仅能有效地控制有害物扩散,而且可以实现远距离捕集有害物及以较小的排风量排放有害物。
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| 关 键 词： | 旋转射流 吸气流动 临界送风速度 流场 |
STUDY ON THE CHARACTERISTICS OF SUCTION-AIRFLOW UNDER ROTARY JET |
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| Wang Pengfei,Liu Ronghua,Qiu Hanfeng,Wang Weijian.STUDY ON THE CHARACTERISTICS OF SUCTION-AIRFLOW UNDER ROTARY JET[J].Environmental Engineering,2011,29(3):58-62. |
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| Authors: | Wang Pengfei Liu Ronghua Qiu Hanfeng Wang Weijian |
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| Abstract: | The suction-airflow under rotary jet was made a relatively comprehensive study through some experiments,which included critical velocity,spout width and the characteristics of this suction-airflow.The results show that this kind of suction-airflow has a critical velocity which relates to exhaust air rate,spout width and air supply angle;it has a best spout width whose air supply-exhaust ratio is the least;The suction-airflow under the rotary jet can effectively control the deleterious materials,which greatly improves the suction.Therefore,it realizes long-distance trapping and low velocity emission of deleterious materials. |
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| Keywords: | rotary jet suction-airflow critical velocity flow field |
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