The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain Spectroscopy
Flow characteristics of water were tested in a rectangular microchannel for Reynolds number (Re) between 0 and 446 by terahertz time domain spectroscopy (THz-TDS). Output THz peak trough intensities and the calculated absorbances of the flow were analyzed theoretically. The results show a rapid chan...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-10-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/17/10/2330 |
| _version_ | 1811262664591015936 |
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| author | Yan Song Kun Zhao Jian Zuo Cuicui Wang Yizhang Li Xinyang Miao Xiaojing Zhao |
| author_facet | Yan Song Kun Zhao Jian Zuo Cuicui Wang Yizhang Li Xinyang Miao Xiaojing Zhao |
| author_sort | Yan Song |
| collection | DOAJ |
| description | Flow characteristics of water were tested in a rectangular microchannel for Reynolds number (Re) between 0 and 446 by terahertz time domain spectroscopy (THz-TDS). Output THz peak trough intensities and the calculated absorbances of the flow were analyzed theoretically. The results show a rapid change for Re < 250 and a slow change as Re increases, which is caused by the early transition from laminar to transition flow beginning nearly at Re = 250. Then this finding is confirmed in the plot of the flow resistant. Our results demonstrate that the THz-TDS could be a valuable tool to monitor and character the flow performance in microscale structures. |
| first_indexed | 2024-04-12T19:30:31Z |
| format | Article |
| id | doaj.art-6e6c2a7245eb4c488a7fd7416d14fc42 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-12T19:30:31Z |
| publishDate | 2017-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-6e6c2a7245eb4c488a7fd7416d14fc422022-12-22T03:19:21ZengMDPI AGSensors1424-82202017-10-011710233010.3390/s17102330s17102330The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain SpectroscopyYan Song0Kun Zhao1Jian Zuo2Cuicui Wang3Yizhang Li4Xinyang Miao5Xiaojing Zhao6State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, ChinaDepartment of Physics, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Capital Normal University, Beijing 100048, ChinaDepartment of Physics, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Capital Normal University, Beijing 100048, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, ChinaDepartment of Physics, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Capital Normal University, Beijing 100048, ChinaFlow characteristics of water were tested in a rectangular microchannel for Reynolds number (Re) between 0 and 446 by terahertz time domain spectroscopy (THz-TDS). Output THz peak trough intensities and the calculated absorbances of the flow were analyzed theoretically. The results show a rapid change for Re < 250 and a slow change as Re increases, which is caused by the early transition from laminar to transition flow beginning nearly at Re = 250. Then this finding is confirmed in the plot of the flow resistant. Our results demonstrate that the THz-TDS could be a valuable tool to monitor and character the flow performance in microscale structures.https://www.mdpi.com/1424-8220/17/10/2330water flowTHz-TDSrectangular microchannelflow-ratepressure dropflow resistance |
| spellingShingle | Yan Song Kun Zhao Jian Zuo Cuicui Wang Yizhang Li Xinyang Miao Xiaojing Zhao The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain Spectroscopy Sensors water flow THz-TDS rectangular microchannel flow-rate pressure drop flow resistance |
| title | The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain Spectroscopy |
| title_full | The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain Spectroscopy |
| title_fullStr | The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain Spectroscopy |
| title_full_unstemmed | The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain Spectroscopy |
| title_short | The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain Spectroscopy |
| title_sort | detection of water flow in rectangular microchannels by terahertz time domain spectroscopy |
| topic | water flow THz-TDS rectangular microchannel flow-rate pressure drop flow resistance |
| url | https://www.mdpi.com/1424-8220/17/10/2330 |
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