Numerical Study on Characteristics of Convection and Temperature Evolution in Microchannel of Thermal Flowmeter
文献类型：期刊论文
| 作者 | Che H(车航); Xu QX(徐清玄); Xu GF(徐国峰); Fu, Xinju; Wang, Xudong; He NF(何乃峰); Zhu ZQ(朱志强)
|
| 刊名 | MICROMACHINES
 |
| 出版日期 | 2023-04 |
| 卷号 | 14期号:5页码:935 |
| 关键词 | numerical simulation thermal flowmeter forced convection buoyancy convection microchannel heat source |
| DOI | 10.3390/mi14050935 |
| 英文摘要 | During practical usage, thermal flowmeters have a limited range of applications. The present work investigates the factors influencing thermal flowmeter measurements and observes the effects of buoyancy convection and forced convection on the flow rate measurement sensitivity. The results show that the gravity level, inclination angle, channel height, mass flow rate, and heating power affect the flow rate measurements by influencing the flow pattern and the temperature distribution. Gravity determines the generation of convective cells, while the inclination angle affects the location of the convective cells. Channel height affects the flow pattern and temperature distribution. Higher sensitivity can be achieved with smaller mass flow rates or higher heating power. According to the combined influence of the aforementioned parameters, the present work investigates the flow transition based on the Reynolds number and the Grashof number. When the Reynolds number is below the critical value corresponding to the Grashof number, convective cells emerge and affect the accuracy of flowmeter measurements. The research on influencing factors and flow transition presented in this paper has potential implications for the design and manufacture of thermal flowmeters under different working conditions. |
| 分类号 | Q3 |
| WOS研究方向 | WOS:000996678900001 |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China [U1738119] ; China Manned Space Program: China Space Station Two-Phase system research Rack |
| 其他责任者 | Zhu, ZQ ; Wang, XD |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92198]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 作者单位 | 1.(Fu Xinju, Wang Xudong) Beijing Engn Res Ctr Efficient & Green Aerosp Prop Beijing 100190 Peoples R China 2.(Fu Xinju, Wang Xudong) Beijing Inst Control Engn Beijing 100190 Peoples R China 3.(Che Hang, Xu Qingxuan, Zhu Zhiqiang) Univ Chinese Acad Sci Beijing 100049 Peoples R China 4.(Che Hang, Xu Qingxuan, Xu Guofeng, He Naifeng, Zhu Zhiqiang) Chinese Acad Sci Inst Mech Beijing 100190 Peoples R China |
| 推荐引用方式 GB/T 7714 | Che H,Xu QX,Xu GF,et al. Numerical Study on Characteristics of Convection and Temperature Evolution in Microchannel of Thermal Flowmeter[J]. MICROMACHINES,2023,14(5):935. |
| APA | 车航.,徐清玄.,徐国峰.,Fu, Xinju.,Wang, Xudong.,...&朱志强.(2023).Numerical Study on Characteristics of Convection and Temperature Evolution in Microchannel of Thermal Flowmeter.MICROMACHINES,14(5),935. |
| MLA | 车航,et al."Numerical Study on Characteristics of Convection and Temperature Evolution in Microchannel of Thermal Flowmeter".MICROMACHINES 14.5(2023):935. |
入库方式： OAI收割
来源：力学研究所
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