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...

Descripción completa

Detalles Bibliográficos
Autores principales: Song, Yan, Zhao, Kun, Zuo, Jian, Wang, Cuicui, Li, Yizhang, Miao, Xinyang, Zhao, Xiaojing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677373/
https://www.ncbi.nlm.nih.gov/pubmed/29027922
http://dx.doi.org/10.3390/s17102330
_version_ 1783277230135181312
author Song, Yan
Zhao, Kun
Zuo, Jian
Wang, Cuicui
Li, Yizhang
Miao, Xinyang
Zhao, Xiaojing
author_facet Song, Yan
Zhao, Kun
Zuo, Jian
Wang, Cuicui
Li, Yizhang
Miao, Xinyang
Zhao, Xiaojing
author_sort Song, Yan
collection PubMed
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.
format Online
Article
Text
id pubmed-5677373
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-56773732017-11-17 The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain Spectroscopy Song, Yan Zhao, Kun Zuo, Jian Wang, Cuicui Li, Yizhang Miao, Xinyang Zhao, Xiaojing Sensors (Basel) Article 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. MDPI 2017-10-13 /pmc/articles/PMC5677373/ /pubmed/29027922 http://dx.doi.org/10.3390/s17102330 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Song, Yan
Zhao, Kun
Zuo, Jian
Wang, Cuicui
Li, Yizhang
Miao, Xinyang
Zhao, Xiaojing
The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain Spectroscopy
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 Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677373/
https://www.ncbi.nlm.nih.gov/pubmed/29027922
http://dx.doi.org/10.3390/s17102330
work_keys_str_mv AT songyan thedetectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT zhaokun thedetectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT zuojian thedetectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT wangcuicui thedetectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT liyizhang thedetectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT miaoxinyang thedetectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT zhaoxiaojing thedetectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT songyan detectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT zhaokun detectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT zuojian detectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT wangcuicui detectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT liyizhang detectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT miaoxinyang detectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy
AT zhaoxiaojing detectionofwaterflowinrectangularmicrochannelsbyterahertztimedomainspectroscopy

Ejemplares similares