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个人信息Personal Information
副教授
博士生导师
硕士生导师
主要任职：Deputy Director, Department of Civil Engineering, Dalian University of Technology
其他任职：APEC Energy Working Group Member, Member of APEC Expert Group on Energy Efficiency and Conservation (EGEE&C)
性别：男
毕业院校：哈尔滨工业大学
学位：博士
所在单位：土木工程系
学科：供热、供燃气、通风及空调工程
办公地点：厚兴楼417房间
联系方式：0411-84707734
电子邮箱：zhaotianyi@dlut.edu.cn
Numerical and experimental research on pentagonal cross-section of the averaging Pitot tube
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论文类型：期刊论文
发表时间：2017-07-01
发表刊物：MEASUREMENT SCIENCE AND TECHNOLOGY
收录刊物：SCIE、EI、Scopus
卷号：28
期号：7
ISSN号：0957-0233
关键字：airflow measurement; averaging Pitot tube; numerical simulation; experimental method
摘要：Averaging Pitot tubes have been widely used in many fields because of their simple structure and stable performance. This paper introduces a new shape of the cross-section of an averaging Pitot tube. Firstly, the structure of the averaging Pitot tube and the distribution of pressure taps are given. Then, a mathematical model of the airflow around it is formulated. After that, a series of numerical simulations are carried out to optimize the geometry of the tube. The distribution of the streamline and pressures around the tube are given. To test its performance, a test platform was constructed in accordance with the relevant national standards and is described in this paper. Curves are provided, linking the values of flow coefficient with the values of Reynolds number. With a maximum deviation of only +/- 3%, the results of the flow coefficient obtained from the numerical simulations were in agreement with those obtained from experimental methods. The proposed tube has a stable flow coefficient and favorable metrological characteristics.